C111123313331323113313331333133313331323133113313231333133313221211331312222311   >>    C11112331333132311331333133313331333132313311331323133313331322121133131222231   <<    C111123313331323113313331333133313331323133113313231333133313221211331312222313   >>      C111123313331323113313331333133313331323133113313231333133313221211331312222312   >>