C312322331333132212111133133313331312111133132313331331123222211   >>    C31232233133313221211113313331333131211113313231333133112322221   <<    C312322331333132212111133133313331312111133132313331331123222213   >>      C312322331333132212111133133313331312111133132313331331123222212   >>