C11111333133313232233133313331333133112111112113313331311211311321   >>    C1111133313331323223313331333133313311211111211331333131121131132   <<    C11111333133313232233133313331333133112111112113313331311211311323   >>      C11111333133313232233133313331333133112111112113313331311211311322   >>