C1111133313331323223313331333133313112113313113313331323112123221   >>    C111113331333132322331333133313331311211331311331333132311212322   <<    C1111133313331323223313331333133313112113313113313331323112123223   >>      C1111133313331323223313331333133313112113313113313331323112123222   >>