C11111333133313232233133313331333133112111133132313231323222311   >>    C1111133313331323223313331333133313311211113313231323132322231   <<    C11111333133313232233133313331333133112111133132313231323222313   >>      C11111333133313232233133313331333133112111133132313231323222312   >>