v[i] <= vmin;
#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
const int N = 100010, INF = 2e9;
int n;
int v[N];
int main()
{
scanf("%d", &n);
for (int i = 0; i < n; i ++ ) scanf("%*d%d", &v[i]);
int res = 0, vmin = INF;
for (int i = n - 1; i >= 0; i -- )
{
if (v[i] <= vmin)
{
res ++ ;
vmin = v[i];
}
//cout << vmin << ' ';
}
printf("%d\n", res);
return 0;
}