C1111233133313231133133313231333133313113313113313331331121111331322222311   >>    C111123313331323113313331323133313331311331311331333133112111133132222231   <<    C1111233133313231133133313231333133313113313113313331331121111331322222313   >>      C1111233133313231133133313231333133313113313113313331331121111331322222312   >>