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