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