C11111333133313331211211331333133313331323133313331333133313221221   >>    C1111133313331333121121133133313331333132313331333133313331322122   <<    C11111333133313331211211331333133313331323133313331333133313221223   >>      C11111333133313331211211331333133313331323133313331333133313221222   >>