C1111233133313231133133313231333133313113313113313331333132223213121331   >>    C111123313331323113313331323133313331311331311331333133313222321312133   <<    C1111233133313231133133313231333133313113313113313331333132223213121333   >>      C1111233133313231133133313231333133313113313113313331333132223213121332   >>