C1111233133313231133133313231333133313113313113313331333132223221311   >>    C111123313331323113313331323133313331311331311331333133313222322131   <<    C1111233133313231133133313231333133313113313113313331333132223221313   >>      C1111233133313231133133313231333133313113313113313331333132223221312   >>