C121213213331322331313331311331312111133131331211111122212233231   >>    C12121321333132233131333131133131211113313133121111112221223323   <<    C121213213331322331313331311331312111133131331211111122212233233   >>      C121213213331322331313331311331312111133131331211111122212233232   >>