Cod sursa(job #210090)

Utilizator m123pop manu m123 Data 26 septembrie 2008 15:43:13
Problema Koba Scor 30
Compilator fpc Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
program Koba;{ preONI 2008, runda 4}
var n,i, s,a,b,c,d:longint;
    f,g:text;
begin
assign(f,'koba.in');reset(f);
assign(g,'koba.out');rewrite(g);
readln(f,n,a,b,c);
a:=a mod 10;b:=b mod 10;c:=c mod 10;
s:=a+b+c;
for i:=4 to n do
  begin
  d:=(c+b*a) mod 10;
  s:=s+d;
  a:=b;b:=c;c:=d;
  end;
write(g,s);
close(f);close(g);
end.