C11111333133313232233133313331333131133132233133313113322331313111   >>    C1111133313331323223313331333133313113313223313331311332233131311   <<    C11111333133313232233133313331333131133132233133313113322331313113   >>      C11111333133313232233133313331333131133132233133313113322331313112   >>