[(0,1),(1,2),(0,2),(2,3),(3,4),(3,5),(1,6),(5,6),(5,7),(7,8),(4,8),(4,9),(7,10),(9,11),(11,12),(10,13),(12,14),(11,15),(9,15),(15,16),(8,17),(14,18),(17,18),(13,19),(17,20),(18,20),(10,21),(14,22),(19,22),(16,23),(19,23),(6,24),(16,25),(25,26),(23,27),(24,27),(26,28),(21,28),(25,29),(28,30),(29,31),(22,32),(30,33),(20,34),(13,35),(34,35),(31,36),(12,36),(34,37),(33,37),(29,38),(30,38),(31,39),(32,39),(39,40),(27,40),(38,41),(36,41),(35,42),(24,42),(21,43),(37,43),(32,44),(40,45),(41,45),(42,46),(33,46),(43,47),(45,47),(26,48),(44,49),(46,49),(48,50),(50,51),(50,52),(48,52),(52,53),(44,54),(54,55),(47,56),(55,57),(51,58),(57,58),(57,59),(54,60),(55,60),(56,61),(51,61),(59,62),(53,63),(62,63),(63,64),(59,64),(56,65),(65,66),(60,67),(62,68),(53,69),(65,70),(69,70),(66,71),(68,72),(58,72),(66,73),(67,74),(61,75),(73,76),(73,77),(49,77),(75,78),(72,79),(79,80),(71,80),(76,81),(79,82),(75,83),(82,83),(82,84),(64,85),(68,86),(85,87),(86,88),(74,88),(83,89),(85,89),(86,90),(87,91),(81,92),(67,93),(92,94),(91,94),(70,95),(84,95),(90,96),(94,97),(88,98),(96,99),(84,99),(81,100),(74,101),(100,101),(69,102),(71,103),(103,104),(77,104),(78,105),(96,106),(93,107),(105,108),(87,108),(97,109),(97,110),(98,111),(102,112),(106,112),(106,113),(80,114),(101,115),(114,115),(90,116),(76,116),(103,117),(107,118),(108,118),(99,119),(91,120),(109,120),(114,121),(113,122),(78,123),(119,124),(118,124),(117,125),(105,126),(119,127),(121,128),(115,129),(120,130),(129,130),(98,131),(111,132),(113,133),(132,134),(110,134),(110,135),(107,136),(121,137),(123,138),(137,138),(104,139),(136,140),(92,141),(126,142),(125,143),(100,144),(128,145),(140,146),(141,146),(124,147),(139,148),(138,149),(122,150),(93,151),(131,152),(134,153),(109,154),(153,155),(116,156),(135,157),(154,158),(135,159),(125,160),(150,160),(156,161),(127,162),(147,162),(151,163),(102,163),(122,164),(133,164),(112,165),(155,165),(142,166),(146,166),(143,167),(131,167),(133,168),(158,169),(111,170),(167,171),(154,172),(168,173),(148,173),(144,174),(141,174),(139,175),(158,175),(157,176),(173,177),(123,177),(176,178),(162,178),(165,179),(144,180),(129,180),(175,181),(153,182),(172,183),(174,184),(140,185),(184,186),(128,187),(161,188),(181,189),(184,190),(170,190),(95,191),(189,192),(155,192),(160,193),(182,194),(152,195),(161,195),(178,196),(159,197),(179,197),(183,198),(181,199),(149,200),(176,201),(201,202),(190,202),(187,203),(166,204),(151,205),(159,206),(171,207),(152,208),(188,208),(207,209),(130,210),(185,211),(163,212),(150,212),(204,213),(211,214),(208,214),(206,215),(179,215),(193,216),(213,217),(215,218),(214,219),(182,219),(157,220),(117,221),(147,222),(196,223),(220,223),(216,224),(142,225),(143,226),(209,226),(126,227),(198,228),(206,229),(226,230),(219,231),(229,232),(230,232),(132,233),(218,233),(232,234),(200,235),(220,236),(186,236),(204,237),(185,237),(212,238),(145,238),(217,239),(187,240),(211,240),(200,241),(225,242),(233,243),(234,244),(218,245),(205,245),(222,246),(164,246),(243,247),(221,248),(193,249),(194,250),(228,251),(216,252),(169,252),(213,253),(235,253),(199,254),(252,255),(244,256),(203,256),(235,257),(209,258),(127,259),(257,259),(137,260),(196,260),(198,261),(242,262),(255,263),(231,264),(222,265),(249,265),(191,266),(197,266),(251,267),(263,267),(217,268),(253,269),(227,270),(247,271),(267,272),(266,273),(259,273),(248,274),(172,274),(210,275),(227,276),(244,277),(205,278),(192,279),(250,280),(156,281),(254,282),(171,283),(272,284),(269,284),(260,285),(89,285),(240,286),(136,287),(202,288),(148,289),(287,290),(169,290),(261,291),(186,291),(241,292),(279,293),(168,294),(292,295),(239,296),(275,297),(286,298),(274,298),(231,299),(228,300),(298,301),(284,302),(275,303),(289,304),(277,305),(264,306),(276,307),(201,308),(270,309),(297,310),(238,311),(270,312),(283,313),(281,314),(278,315),(191,316),(239,317),(225,318),(258,319),(294,320),(272,321),(210,322),(268,323),(145,324),(297,325),(283,326),(294,327),(295,328),(258,329),(293,330),(207,331),(183,332),(288,333),(293,334),(269,335),(289,336),(195,337),(237,338),(296,339),(278,340),(242,341),(281,342),(257,343),(177,344),(247,345),(271,346),(291,347),(268,348),(282,349),(246,350),(282,351),(287,352),(295,353),(279,354),(241,355),(203,356),(286,357),(224,358),(264,359),(180,360),(254,361),(251,362),(194,363),(262,364),(288,365),(223,366),(170,367),(280,368),(224,369),(189,370),(149,371),(256,372),(243,373),(236,374),(230,375),(292,376),(255,377),(263,378),(199,379),(277,380),(265,381),(248,382),(285,383),(261,384),(249,385),(296,386),(290,387),(271,388),(234,389),(229,390),(276,391),(273,392),(280,393),(188,394),(221,395),(262,396),(250,397),(245,398)]
[(0,1),(1,2),(0,2),(2,3),(3,4),(3,5),(1,6),(5,6),(5,7),(7,8),(4,8),(4,9),(7,10),(9,11),(11,12),(10,13),(12,14),(11,15),(9,15),(15,16),(8,17),(14,18),(17,18),(13,19),(17,20),(18,20),(10,21),(14,22),(19,22),(16,23),(19,23),(6,24),(16,25),(25,26),(23,27),(24,27),(26,28),(21,28),(25,29),(28,30),(29,31),(22,32),(30,33),(20,34),(13,35),(34,35),(31,36),(12,36),(34,37),(33,37),(29,38),(30,38),(31,39),(32,39),(39,40),(27,40),(38,41),(36,41),(35,42),(24,42),(21,43),(37,43),(32,44),(40,45),(41,45),(42,46),(33,46),(43,47),(45,47),(26,48),(44,49),(46,49),(48,50),(50,51),(50,52),(48,52),(52,53),(44,54),(54,55),(47,56),(55,57),(51,58),(57,58),(57,59),(54,60),(55,60),(56,61),(51,61),(59,62),(53,63),(62,63),(63,64),(59,64),(56,65),(65,66),(60,67),(62,68),(53,69),(65,70),(69,70),(66,71),(68,72),(58,72),(66,73),(67,74),(61,75),(73,76),(73,77),(49,77),(75,78),(72,79),(79,80),(71,80),(76,81),(79,82),(75,83),(82,83),(82,84),(64,85),(68,86),(85,87),(86,88),(74,88),(83,89),(85,89),(86,90),(87,91),(81,92),(67,93),(92,94),(91,94),(70,95),(84,95),(90,96),(94,97),(88,98),(96,99),(84,99),(81,100),(74,101),(100,101),(69,102),(71,103),(103,104),(77,104),(78,105),(96,106),(93,107),(105,108),(87,108),(97,109),(97,110),(98,111),(102,112),(106,112),(106,113),(80,114),(101,115),(114,115),(90,116),(76,116),(103,117),(107,118),(108,118),(99,119),(91,120),(109,120),(114,121),(113,122),(78,123),(119,124),(118,124),(117,125),(105,126),(119,127),(121,128),(115,129),(120,130),(129,130),(98,131),(111,132),(113,133),(132,134),(110,134),(110,135),(107,136),(121,137),(123,138),(137,138),(104,139),(136,140),(92,141),(126,142),(125,143),(100,144),(128,145),(140,146),(141,146),(124,147),(139,148),(138,149),(122,150),(93,151),(131,152),(134,153),(109,154),(153,155),(116,156),(135,157),(154,158),(135,159),(125,160),(150,160),(156,161),(127,162),(147,162),(151,163),(102,163),(122,164),(133,164),(112,165),(155,165),(142,166),(146,166),(143,167),(131,167),(133,168),(158,169),(111,170),(167,171),(154,172),(168,173),(148,173),(144,174),(141,174),(139,175),(158,175),(157,176),(173,177),(123,177),(176,178),(162,178),(165,179),(144,180),(129,180),(175,181),(153,182),(172,183),(174,184),(140,185),(184,186),(128,187),(161,188),(181,189),(184,190),(170,190),(95,191),(189,192),(155,192),(160,193),(182,194),(152,195),(161,195),(178,196),(159,197),(179,197),(183,198),(181,199),(149,200),(176,201),(201,202),(190,202),(187,203),(166,204),(151,205),(159,206),(171,207),(152,208),(188,208),(207,209),(130,210),(185,211),(163,212),(150,212),(204,213),(211,214),(208,214),(206,215),(179,215),(193,216),(213,217),(215,218),(214,219),(182,219),(157,220),(117,221),(147,222),(196,223),(220,223),(216,224),(142,225),(143,226),(209,226),(126,227),(198,228),(206,229),(226,230),(219,231),(229,232),(230,232),(132,233),(218,233),(232,234),(200,235),(220,236),(186,236),(204,237),(185,237),(212,238),(145,238),(217,239),(187,240),(211,240),(200,241),(225,242),(233,243),(234,244),(218,245),(205,245),(222,246),(164,246),(243,247),(221,248),(193,249),(194,250),(228,251),(216,252),(169,252),(213,253),(235,253),(199,254),(252,255),(244,256),(203,256),(235,257),(209,258),(127,259),(257,259),(137,260),(196,260),(198,261),(242,262),(255,263),(231,264),(222,265),(249,265),(191,266),(197,266),(251,267),(263,267),(217,268),(253,269),(227,270),(247,271),(267,272),(266,273),(259,273),(248,274),(172,274),(210,275),(227,276),(244,277),(205,278),(192,279),(250,280),(156,281),(254,282),(171,283),(272,284),(269,284),(260,285),(89,285),(240,286),(136,287),(202,288),(148,289),(287,290),(169,290),(261,291),(186,291),(241,292),(279,293),(168,294),(292,295),(239,296),(275,297),(286,298),(274,298),(231,299),(228,300),(298,301),(284,302),(275,303),(289,304),(277,305),(264,306),(276,307),(201,308),(270,309),(297,310),(238,311),(270,312),(283,313),(281,314),(278,315),(191,316),(239,317),(225,318),(258,319),(294,320),(272,321),(210,322),(268,323),(145,324),(297,325),(283,326),(294,327),(295,328),(258,329),(293,330),(207,331),(183,332),(288,333),(293,334),(269,335),(289,336),(195,337),(237,338),(296,339),(278,340),(242,341),(281,342),(257,343),(177,344),(247,345),(271,346),(291,347),(268,348),(282,349),(246,350),(282,351),(287,352),(295,353),(279,354),(241,355),(203,356),(286,357),(224,358),(264,359),(180,360),(254,361),(251,362),(194,363),(262,364),(288,365),(223,366),(170,367),(280,368),(224,369),(189,370),(149,371),(256,372),(243,373),(236,374),(230,375),(292,376),(255,377),(263,378),(199,379),(277,380),(265,381),(248,382),(285,383),(261,384),(249,385),(296,386),(290,387),(271,388),(234,389),(229,390),(276,391),(273,392),(280,393),(188,394),(221,395),(262,396),(250,397),(245,398)]
