C212212121212113313132333131311331323121111331313223313232311331   >>    C21221212121211331313233313131133132312111133131322331323231133   <<    C212212121212113313132333131311331323121111331313223313232311333   >>      C212212121212113313132333131311331323121111331313223313232311332   >>