C31232233133313221211113313331333131211113313231313331121133231   >>    C3123223313331322121111331333133313121111331323131333112113323   <<    C31232233133313221211113313331333131211113313231313331121133233   >>      C31232233133313221211113313331333131211113313231313331121133232   >>