C31232233133313221211113313331333132313331333133313331333131211113313113323231   >>    C3123223313331322121111331333133313231333133313331333133313121111331311332323   <<    C31232233133313221211113313331333132313331333133313331333131211113313113323233   >>      C31232233133313221211113313331333132313331333133313331333131211113313113323232   >>