C313131323331311331322331322331311211331323132311113313231333132313213231   >>    C31313132333131133132233132233131121133132313231111331323133313231321323   <<    C313131323331311331322331322331311211331323132311113313231333132313213233   >>      C313131323331311331322331322331311211331323132311113313231333132313213232   >>