C11111333133313232233133313331333133313231312111133131123332233131111   >>    C1111133313331323223313331333133313331323131211113313112333223313111   <<    C11111333133313232233133313331333133313231312111133131123332233131113   >>      C11111333133313232233133313331333133313231312111133131123332233131112   >>