C11111333133313232233133313331333133313332313311211111322331311211311   >>    C1111133313331323223313331333133313331333231331121111132233131121131   <<    C11111333133313232233133313331333133313332313311211111322331311211313   >>      C11111333133313232233133313331333133313332313311211111322331311211312   >>