C11111333133313331211211331333133313331323133313331333131133132313211   >>    C1111133313331333121121133133313331333132313331333133313113313231321   <<    C11111333133313331211211331333133313331323133313331333131133132313213   >>      C11111333133313331211211331333133313331323133313331333131133132313212   >>