help i'm confused

[yessss]

what did i do wrong

#include <iostream>
#include <cmath>

int main ()
{
using namespace std;

int ages[3];
ages[0]=25;
ages[1]=23;
ages[2]=21;

cout << ages[1] + ages[3];

return 0;
}

[andywestken]

Tried to get the 4th elem of a 3 elem array?

[yessss]

Oh haha, thank you, I can't believe I didn't notice that.