// Factorial calculator
var n = 4; // Calculate factorial of 4
var result = 1;
var i = 1;
// Calculate n!
while i <= n {
result = result * i;
i = i + 1;
}
// Output result as digit (works for small factorials)
putc("0" + result / 10);
putc("0" + result % 10);
putc(10); // newline