program z4; uses crt; var m,n,s,i:integer; BEGIN writeln('vvesti dv chisslo'); read(m); read(n); s:=n+m; if s>9 then writeln('dv chislo') else writeln('odnoznachnoe'); i:=10-s; begin if s>10 then writeln('chisko dv') else writeln(i); end; END.