C111123313331323113313331333133313231333132311312111133131132132331   >>    C11112331333132311331333133313331323133313231131211113313113213233   <<    C111123313331323113313331333133313231333132311312111133131132132333   >>      C111123313331323113313331333133313231333132311312111133131132132332   >>