C1111233133313231133133313331333133313231312111133132233132223311   >>    C111123313331323113313331333133313331323131211113313223313222331   <<    C1111233133313231133133313331333133313231312111133132233132223313   >>      C1111233133313231133133313331333133313231312111133132233132223312   >>