uses crt;
const max=20;
var a,b,c:array[1..max,1..max]of integer;
n,m,t,i,j,p:integer;
begin
clrscr;
randomize;
repeat
write('Количество строк матрицы А до ',max,' n=');
readln(n);
until n in [1..max];
repeat
write('Количество столбцов матрицы А до ',max,' m=');
readln(m);
until m in [1..max];
repeat
write('Количество столбцов матрицы В до ',max,' t=');
readln(t);
until t in [1..max];
writeln('Matrica A:');
for i:=1 to n do
begin
for j:=1 to m do
begin
a[i,j]:=random(9)+1;
write(a[i,j]:3);
end;
writeln;
end;
writeln('Matrica B:');
for i:=1 to m do
begin
for j:=1 to t do
begin
b[i,j]:=random(9)+1;
write(b[i,j]:3);
end;
writeln;
end;
for p:=1 to n do
for j:=1 to t do
begin
c[p,j]:=0;
for i:=1 to m do
begin
c[p,j]:=c[p,j]+a[p,i]*b[i,j];
end;
end;
writeln('Matrica C=A*B:');
for i:=1 to n do
begin
for j:=1 to t do
write(c[i,j]:5);
writeln;
end;
readln;
end.