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