program dem_k;
uses crt;
var A:array[1..1000] of integer;
m,i,k,d:integer;
begin
clrscr;
write('Nhap k: '); readln(k);
write('Nhap M: '); readln(m);
d:=0;
for i:=1 to m do
begin
write('A[',i,']= '); readln(A[i]);
if A[i]=k then d:=d+1;
end;
if d=0 then write('Khong co')
else
begin
write('Co ',d,' so: ');
for i:=1 to n do
if A[i]=k then write(i,' ');
end;
readln;
end.
