#include <bits/stdc++.h>
using namespace std;
int n, numitor1, numarator1, a, b, i, d, im, r;
int main()
{
cin >> n;
cin >> numarator1 >> numitor1;
for(i = 2; i <= n; i ++)
{
cin >> a >> b;
numarator1 = a * numitor1 + numarator1 * b;
numitor1 = b * numitor1;
d = numarator1;
im = numitor1;
r = d % im;
while(r)
{
d = im;
im = r;
r = d % im;
}
numarator1 = numarator1 / im;
numitor1 = numitor1 / im;
}
cout << numarator1 << " " << numitor1;
return 0;
}