C31232233133313221211113313331333132313331322121111121133131313231   >>    C3123223313331322121111331333133313231333132212111112113313131323   <<    C31232233133313221211113313331333132313331322121111121133131313233   >>      C31232233133313221211113313331333132313331322121111121133131313232   >>