program SumOfThreeNumbers;

var
num1, num2, num3, sum: Integer;

begin
writeln('Enter the first number: ');
readln(num1);

writeln('Enter the second number: ');
readln(num2);

writeln('Enter the third number: ');
readln(num3);

sum := num1 + num2 + num3;

writeln('The sum of the three numbers is: ', sum);

end.