C111123313121111121111331323133313331333132322121111331331121133133321121   >>    C11112331312111112111133132313331333133313232212111133133112113313332112   <<    C111123313121111121111331323133313331333132322121111331331121133133321123   >>      C111123313121111121111331323133313331333132322121111331331121133133321122   >>