C111123313121111121111331323133313331333132322121111121133221231   >>    C11112331312111112111133132313331333133313232212111112113322123   <<    C111123313121111121111331323133313331333132322121111121133221233   >>      C111123313121111121111331323133313331333132322121111121133221232   >>