C111123313121111121111331333133313331331121111113313231323223231   >>    C11112331312111112111133133313331333133112111111331323132322323   <<    C111123313121111121111331333133313331331121111113313231323223233   >>      C111123313121111121111331333133313331331121111113313231323223232   >>