C11111333133313232233133313331333131133131331121111331313112131   >>    C1111133313331323223313331333133313113313133112111133131311213   <<    C11111333133313232233133313331333131133131331121111331313112133   >>      C11111333133313232233133313331333131133131331121111331313112132   >>