C11111333133313331211211331333133313331323133313331333132322233231   >>    C1111133313331333121121133133313331333132313331333133313232223323   <<    C11111333133313331211211331333133313331323133313331333132322233233   >>      C11111333133313331211211331333133313331323133313331333132322233232   >>