Cod sursa(job #279133)
Utilizator | Data | 12 martie 2009 18:04:34 | |
---|---|---|---|
Problema | Factorial | Scor | 0 |
Compilator | fpc | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
var n,m,s:integer;
p:0..100000000;
f,g:text;
begin
assign(f,'fact.in');
assign(g,'fact.out');
reset(f);
read(f,p);
n:=5;
rewrite(g);
if (p-5) mod 6=0 then write(g,'-1')
else begin
n:=(p-1)*5;
write(g,n);
end;
close(f);
close(g);
end.