// Type your code here, or load an example.
int square(int num) {
    return num * num;
}
// Type your code here, or load an example.
pub fn square(num: i32) -> i32 {
  num * num
}
// Type your code here, or load an example.
// Your function name should start with a capital letter.
package main

func Square(x int) int {
  return x * x
}

func main() {}
// Type your code here, or load an example.
int square(int num) {
  return num * num;
}