C1111233133313231133133313231333133313113313113313231322132312131   >>    C111123313331323113313331323133313331311331311331323132213231213   <<    C1111233133313231133133313231333133313113313113313231322132312133   >>      C1111233133313231133133313231333133313113313113313231322132312132   >>