15 lines
284 B
ObjectPascal

program ex4_1;
var n:integer;
function f(n:integer):real;
begin
if n=1 then f:=1
else f:=n*f(n-1);
end;
begin
//assign(input,'ni.in');reset(input);
//assign(output,'ni.out');rewrite(output);
readln(n);
writeln(n,'!=',f(n):0:0);
//close(input);close(output);
end.