C1111121111331311211331333133313231333132211312111133132322123313231312121   >>    C111112111133131121133133313331323133313221131211113313232212331323131212   <<    C1111121111331311211331333133313231333132211312111133132322123313231312123   >>      C1111121111331311211331333133313231333132211312111133132322123313231312122   >>