C111123313331323113313331333133313331323132311233133313132313331312113211331   >>    C11112331333132311331333133313331333132313231123313331313231333131211321133   <<    C111123313331323113313331333133313331323132311233133313132313331312113211333   >>      C111123313331323113313331333133313331323132311233133313132313331312113211332   >>