P3 ian

#include <iostream>

using namespace std;

int main() {

unsigned long p,a,b,c;

cout<<"p=";cin>>p;

  for (a=1;a<p-2;a++)
  for (b=1;b<p-2;b++)
{
    c=p-a-b;
    if (a+b>c&&c+b>a&&a+c>b)
    cout<<a<<" "<<b<<" "<<c<<endl;
}

 return 0;
}