C31232233133313221211113313331333132313331323331333133313113313231333132211   >>    C3123223313331322121111331333133313231333132333133313331311331323133313221   <<    C31232233133313221211113313331333132313331323331333133313113313231333132213   >>      C31232233133313221211113313331333132313331323331333133313113313231333132212   >>