C111123313331323113313331333133313231333132231211331323132322331   >>    C11112331333132311331333133313331323133313223121133132313232233   <<    C111123313331323113313331333133313231333132231211331323132322333   >>      C111123313331323113313331333133313231333132231211331323132322332   >>