const n = 3;
var
a:array[1..n,1..n] of real;
procedure vvod;
var
i,j:integer;
begin
writeln('Zapolnite massiv');
for i:= 1 to n do
for j:= 1 to n do
readln(a[i,j]);
end;
procedure vivod;
var
i,j:integer;
begin
for i:= 1 to n do begin
writeln;
for j:= 1 to n do
write(a[i,j]:0:2);
end;
writeln;
end;
procedure sar;
var
i,j,count:integer;
sum:real;
begin
sum:= 0;
count:= 0;
for i:= 1 to n do
for j:= 1 to n do
if a[i,j] > 0 then begin
sum:= sum + a[i,j];
inc(count);
end;
writeln('Srednee arifmeticheskoe = ',sum/count:0:2);
end;
begin
vvod;
vivod;
sar;
end.