C111123313331323113313331333133313331323123231333133313132313331323131122233221   >>    C11112331333132311331333133313331333132312323133313331313231333132313112223322   <<    C111123313331323113313331333133313331323123231333133313132313331323131122233223   >>      C111123313331323113313331333133313331323123231333133313132313331323131122233222   >>