C111123313331323113313331333133313331323132311233133313121111111113231   >>    C11112331333132311331333133313331333132313231123313331312111111111323   <<    C111123313331323113313331333133313331323132311233133313121111111113233   >>      C111123313331323113313331333133313331323132311233133313121111111113232   >>