C1111233133313231133133313331333133313231312111111331323112223311   >>    C111123313331323113313331333133313331323131211111133132311222331   <<    C1111233133313231133133313331333133313231312111111331323112223313   >>      C1111233133313231133133313331333133313231312111111331323112223312   >>