C11111333133313232233133313331333133313231312111111331311233132311233131   >>    C1111133313331323223313331333133313331323131211111133131123313231123313   <<    C11111333133313232233133313331333133313231312111111331311233132311233133   >>      C11111333133313232233133313331333133313231312111111331311233132311233132   >>