C11111333133313232233133313331333133313231312111133132332131231   >>    C1111133313331323223313331333133313331323131211113313233213123   <<    C11111333133313232233133313331333133313231312111133132332131233   >>      C11111333133313232233133313331333133313231312111133132332131232   >>