program Evklid;
function gcd(a, b: integer): integer;beginif b = 0 thengcd := aelsegcd := gcd(b, a mod b);end;
vara, b, c: integer;
beginwrite('Enter the first number: ');readln(a);
write('Enter the second number: ');readln(b);
write('Enter the third number: ');readln(c);
writeln('The greatest common divisor is: ', gcd(gcd(a, b), c));end.
program Evklid;
function gcd(a, b: integer): integer;
begin
if b = 0 then
gcd := a
else
gcd := gcd(b, a mod b);
end;
var
a, b, c: integer;
begin
write('Enter the first number: ');
readln(a);
write('Enter the second number: ');
readln(b);
write('Enter the third number: ');
readln(c);
writeln('The greatest common divisor is: ', gcd(gcd(a, b), c));
end.