program PascalGuru;
var
A: array [1 .. 50, 1 .. 50] of integer; { объявление переменных }
n, m, i, j, b, c, summa, k: integer;
begin
write('N= ');
readln(n);
write('M= ');
readln(m);
for i := 1 to n do
for j := 1 to m do
begin
write('A[', i, ',', j, ']=');
readln(A[i, j]);
end;
writeln('Vvedennyi massiv:');
for i := 1 to n do
begin
writeln;
for j := 1 to m do
write(A[i, j]:8);
end;
writeln;
write('b= ');
readln(b);
write('c= ');
readln(c);
summa := 0;
k := 0;
for i := 1 to n do
for j := 1 to m do
if (A[i, j] >= b) and (A[i, j] <= c) then
begin
inc(k);
summa := summa + A[i, j];
end;
writeln;
writeln('Sr.Ar= ', summa / k:0:2);
readln;
end.