C11111333133313232233133313331333133313231312111133131132123131   >>    C1111133313331323223313331333133313331323131211113313113212313   <<    C11111333133313232233133313331333133313231312111133131132123133   >>      C11111333133313232233133313331333133313231312111133131132123132   >>