C111123313331323113313331333133313331122112312111133132311123231   >>    C11112331333132311331333133313331333112211231211113313231112323   <<    C111123313331323113313331333133313331122112312111133132311123233   >>      C111123313331323113313331333133313331122112312111133132311123232   >>