C12121321333132233131333131133131211113313113313113313231333133313113311   >>    C1212132133313223313133313113313121111331311331311331323133313331311331   <<    C12121321333132233131333131133131211113313113313113313231333133313113313   >>      C12121321333132233131333131133131211113313113313113313231333133313113312   >>