C111123313331323113313331333133313231333132311312111133132312311331   >>    C11112331333132311331333133313331323133313231131211113313231231133   <<    C111123313331323113313331333133313231333132311312111133132312311333   >>      C111123313331323113313331333133313231333132311312111133132312311332   >>