C11111333133313232233133313331333133313231312111133132212133313111321   >>    C1111133313331323223313331333133313331323131211113313221213331311132   <<    C11111333133313232233133313331333133313231312111133132212133313111323   >>      C11111333133313232233133313331333133313231312111133132212133313111322   >>