C11111333133313232233133313331333131133132313311211331311211123231   >>    C1111133313331323223313331333133313113313231331121133131121112323   <<    C11111333133313232233133313331333131133132313311211331311211123233   >>      C11111333133313232233133313331333131133132313311211331311211123232   >>