C31232233133313221211113313331333132313232233133313231333131211211   >>    C3123223313331322121111331333133313231323223313331323133313121121   <<    C31232233133313221211113313331333132313232233133313231333131211213   >>      C31232233133313221211113313331333132313232233133313231333131211212   >>