C31232233133313221211113313331333131211113313231333132332311311   >>    C3123223313331322121111331333133313121111331323133313233231131   <<    C31232233133313221211113313331333131211113313231333132332311313   >>      C31232233133313221211113313331333131211113313231333132332311312   >>