C11111333133313232233133313331333133313231333133313311211331333231321   >>    C1111133313331323223313331333133313331323133313331331121133133323132   <<    C11111333133313232233133313331333133313231333133313311211331333231323   >>      C11111333133313232233133313331333133313231333133313311211331333231322   >>