program sr;
const n=10;
var a,b,c:array[1..n] of integer;
d:array[1..n] of real;
i,k:integer;
begin
randomize;
for i:=1 to n do begin
a[i]:=random(15);
b[i]:=random(15);
c[i]:=random(15);
d[i]:=(a[i]+b[i]+c[i])/3
end;
for i:=1 to n do begin
write (a[i],' ',b[i],' ',c[i],' ',d[i]:2:2);
writeln;
end;
end.