C11111333133313232233133313331333131133132313311211111111133311   >>    C1111133313331323223313331333133313113313231331121111111113331   <<    C11111333133313232233133313331333131133132313311211111111133313   >>      C11111333133313232233133313331333131133132313311211111111133312   >>