C1111133313331323223313331333133313331323131313121111331311311231   >>    C111113331333132322331333133313331333132313131312111133131131123   <<    C1111133313331323223313331333133313331323131313121111331311311233   >>      C1111133313331323223313331333133313331323131313121111331311311232   >>