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