C1111133313331323223313331333133313112113313113313331333211232231   >>    C111113331333132322331333133313331311211331311331333133321123223   <<    C1111133313331323223313331333133313112113313113313331333211232233   >>      C1111133313331323223313331333133313112113313113313331333211232232   >>