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