C11111333133313232233133313331333133313231312111133132332113133221   >>    C1111133313331323223313331333133313331323131211113313233211313322   <<    C11111333133313232233133313331333133313231312111133132332113133223   >>      C11111333133313232233133313331333133313231312111133132332113133222   >>