C11111333133313232233133313331333131133131121131211113313332233131121311   >>    C1111133313331323223313331333133313113313112113121111331333223313112131   <<    C11111333133313232233133313331333131133131121131211113313332233131121313   >>      C11111333133313232233133313331333131133131121131211113313332233131121312   >>