C11111333133313232233133313331333131133132313311211111133132331232313231323231   >>    C1111133313331323223313331333133313113313231331121111113313233123231323132323   <<    C11111333133313232233133313331333131133132313311211111133132331232313231323233   >>      C11111333133313232233133313331333131133132313311211111133132331232313231323232   >>