C1111133313331323223313331333133313331323223331211113313232112323233231   >>    C111113331333132322331333133313331333132322333121111331323211232323323   <<    C1111133313331323223313331333133313331323223331211113313232112323233233   >>      C1111133313331323223313331333133313331323223331211113313232112323233232   >>