[(0,1),(1,2),(2,3),(0,4),(4,5),(3,6),(4,7),(1,7),(6,8),(6,9),(2,10),(3,10),(5,11),(9,12),(11,13),(9,14),(8,15),(5,16),(16,17),(12,18),(8,19),(10,20),(13,20),(12,21),(17,22),(14,22),(17,23),(15,24),(7,25),(16,25),(23,26),(15,27),(18,28),(27,29),(26,30),(19,31),(26,32),(30,33),(21,34),(27,35),(18,36),(11,37),(34,37),(19,38),(22,39),(31,39),(38,40),(29,41),(39,42),(35,43),(42,43),(25,44),(14,45),(23,46),(35,47),(32,48),(34,49),(31,50),(33,50),(20,51),(41,52),(36,53),(40,53),(44,54),(50,55),(28,56),(45,57),(24,57),(32,58),(51,59),(24,60),(55,61),(30,62),(48,62),(49,63),(46,64),(28,65),(55,66),(58,67),(47,68),(36,69),(47,69),(57,70),(63,71),(70,72),(49,73),(71,73),(56,74),(58,75),(52,76),(72,77),(69,78),(13,78),(40,79),(29,80),(71,80),(67,81),(65,81),(80,82),(79,82),(41,83),(62,84),(59,85),(60,86),(65,87),(54,88),(51,88),(84,89),(70,90),(87,91),(33,92),(48,92),(74,93),(68,93),(76,94),(76,95),(61,95),(21,96),(38,97),(96,98),(83,99),(66,100),(52,100),(61,101),(72,102),(91,102),(99,103),(87,104),(97,105),(43,106),(59,107),(77,108),(98,108),(100,109),(91,109),(104,110),(75,111),(54,112),(107,113),(37,114),(82,115),(68,115),(64,116),(93,117),(53,117),(92,118),(86,119),(108,119),(94,120),(46,121),(118,122),(89,123),(66,124),(60,125),(88,126),(78,127),(109,128),(103,129),(123,130),(98,131),(111,132),(96,133),(105,134),(123,135),(114,136),(135,137),(132,138),(67,138),(97,139),(113,140),(81,140),(79,141),(85,142),(83,142),(75,143),(94,143),(126,144),(138,144),(121,145),(89,146),(145,146),(126,147),(127,148),(128,149),(56,149),(145,150),(136,151),(127,152),(137,152),(95,153),(101,154),(124,155),(155,156),(122,157),(121,158),(63,159),(136,160),(116,161),(139,161),(45,162),(119,163),(107,164),(122,165),(142,166),(160,166),(149,167),(163,168),(129,169),(148,169),(135,170),(151,171),(111,172),(104,173),(164,174),(162,175),(153,176),(143,176),(162,177),(151,177),(174,178),(131,179),(158,179),(172,180),(64,181),(137,182),(106,183),(146,184),(183,185),(148,185),(184,186),(165,187),(172,187),(181,188),(133,189),(112,190),(120,191),(175,191),(110,192),(129,192),(90,193),(118,193),(177,194),(99,194),(168,195),(156,196),(77,196),(117,197),(115,198),(192,199),(112,200),(173,201),(188,202),(171,203),(159,204),(150,205),(154,206),(139,207),(166,208),(178,209),(134,210),(90,211),(156,212),(132,213),(195,214),(194,215),(167,216),(165,217),(125,218),(113,219),(106,220),(183,221),(141,222),(164,223),(176,224),(198,225),(191,226),(125,227),(110,228),(130,229),(170,230),(147,231),(169,232),(187,233),(101,234),(180,235),(188,236),(185,237),(73,238),(171,239),(147,240),(168,241),(160,242),(155,243),(102,244),(198,245),(195,246),(84,247),(128,248),(163,249),(158,250),(157,251),(153,252),(120,253),(189,254),(74,255),(133,256),(190,257),(144,258),(86,259),(182,260),(193,261),(170,262),(140,263),(131,264),(179,265),(116,266),(189,267),(161,268),(178,269),(174,270),(184,271),(197,272),(175,273),(85,274),(173,275),(124,276),(159,277),(114,278),(42,279),(44,280),(141,281),(154,282),(152,283),(134,284),(181,285),(150,286),(157,287),(180,288),(167,289),(130,290),(186,291),(190,292),(103,293),(186,294),(105,295),(196,296),(197,297),(182,298)]
[(0,1),(0,2),(2,3),(1,4),(1,5),(3,6),(3,7),(5,8),(6,9),(8,10),(10,11),(8,11),(5,12),(7,13),(10,14),(4,14),(6,15),(2,15),(12,16),(16,17),(9,17),(9,18),(16,19),(17,20),(18,21),(20,22),(15,23),(21,23),(14,24),(19,24),(20,25),(12,25),(7,26),(19,26),(22,27),(11,28),(23,29),(13,30),(18,31),(31,32),(28,32),(32,33),(28,34),(22,35),(24,35),(27,36),(30,37),(25,37),(33,38),(13,39),(39,40),(29,40),(40,41),(37,42),(35,42),(27,43),(34,44),(34,45),(4,46),(43,46),(41,47),(44,48),(26,49),(44,50),(38,50),(48,51),(43,52),(51,53),(53,54),(48,55),(33,56),(55,57),(50,58),(21,59),(45,60),(60,61),(29,62),(56,63),(60,64),(46,65),(38,65),(49,66),(42,66),(55,67),(67,68),(61,69),(67,70),(39,71),(54,72),(58,73),(59,74),(56,75),(52,76),(71,76),(65,77),(63,78),(36,79),(75,80),(63,80),(47,81),(31,82),(81,83),(64,83),(80,84),(45,84),(73,85),(62,86),(77,87),(70,88),(64,88),(75,89),(86,90),(57,91),(62,92),(81,93),(71,93),(87,94),(66,95),(82,96),(89,97),(86,98),(51,99),(87,99),(72,100),(78,100),(59,101),(88,101),(95,102),(91,103),(78,103),(94,104),(83,105),(96,106),(85,106),(97,107),(98,108),(58,108),(74,109),(109,110),(70,111),(36,112),(79,113),(105,113),(69,114),(102,115),(114,116),(96,117),(54,118),(90,119),(112,119),(103,120),(111,121),(99,122),(95,123),(119,124),(107,125),(116,125),(124,126),(47,127),(118,128),(115,129),(123,130),(127,131),(30,132),(128,133),(115,134),(98,135),(120,136),(135,137),(113,138),(122,139),(117,140),(93,141),(126,141),(91,142),(137,143),(123,144),(41,144),(69,145),(94,146),(126,146),(139,147),(129,148),(121,148),(90,149),(104,149),(105,150),(73,151),(150,152),(151,153),(131,154),(121,154),(127,155),(77,156),(136,157),(142,158),(130,159),(138,160),(106,161),(118,162),(53,163),(125,164),(89,165),(120,165),(145,166),(155,167),(161,168),(140,169),(163,169),(159,170),(149,171),(154,171),(79,172),(124,173),(139,174),(166,174),(133,175),(152,176),(132,177),(74,178),(108,179),(150,179),(85,180),(177,181),(180,182),(138,183),(111,184),(166,184),(162,185),(161,186),(102,186),(97,187),(92,187),(110,188),(144,189),(68,189),(189,190),(160,191),(179,191),(114,192),(173,193),(176,194),(134,195),(181,196),(140,197),(82,197),(84,198),(182,198),(61,199),(196,200),(198,201),(156,202),(163,203),(68,204),(172,205),(151,206),(109,207),(136,208),(101,209),(158,210),(168,211),(174,212),(178,213),(153,214),(164,215),(160,216),(185,217),(145,218),(176,219),(167,220),(196,221),(191,222),(153,223),(177,224),(142,225),(194,226),(171,227),(195,228),(141,229),(107,230),(135,231),(157,232),(137,233),(134,234),(152,235),(188,236),(155,237),(52,238),(110,239),(92,240),(158,241),(183,242),(148,243),(143,244),(128,245),(156,246),(104,247),(185,248),(130,249),(183,250),(193,251),(173,252),(175,253),(178,254),(170,255),(167,256),(147,257),(193,258),(162,259),(192,260),(190,261),(192,262),(180,263),(184,264),(169,265),(49,266),(190,267),(57,268),(175,269),(194,270),(170,271),(181,272),(76,273),(164,274),(195,275),(143,276),(132,277),(186,278),(157,279),(187,280),(188,281),(131,282),(116,283),(129,284),(172,285),(112,286),(147,287),(72,288),(168,289),(159,290),(133,291),(100,292),(165,293),(197,294),(182,295),(122,296),(146,297),(117,298)]
