C111123313331323113313331333133313231333132311312111133131133132313323211331   >>    C11112331333132311331333133313331323133313231131211113313113313231332321133   <<    C111123313331323113313331333133313231333132311312111133131133132313323211333   >>      C111123313331323113313331333133313231333132311312111133131133132313323211332   >>