C11111333133313232233133313331333133313332313311211111322331313111   >>    C1111133313331323223313331333133313331333231331121111132233131311   <<    C11111333133313232233133313331333133313332313311211111322331313113   >>      C11111333133313232233133313331333133313332313311211111322331313112   >>