C12121321333132233131333131133131211113313113313113313231323132313221   >>    C1212132133313223313133313113313121111331311331311331323132313231322   <<    C12121321333132233131333131133131211113313113313113313231323132313223   >>      C12121321333132233131333131133131211113313113313113313231323132313222   >>