#include<bits/stdc++.h>
#define meta int tm = tl + (tr - tl) / 2, x = (i << 1) + 1, y = x + 1
using namespace std;
const int maxn = 1e5 + 1;
int st[maxn * 4 + 1] {}, mn[maxn * 4 + 1] {}, mx[maxn * 4 + 1] {};
void update(int i, int tl, int tr, int X, int v) {
if(tl == tr) {
st[i] = mn[i] = mx[i] = v;
return;
}
meta;
if(X <= tm) update(x, tl, tm, X, v);
else update(y, tm + 1, tr, X, v);
st[i] = st[x] + st[y];
mn[i] = min(mn[x] + st[y], mn[y]);
mx[i] = max(mx[x] + st[y], mx[y]);
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
for(int i = 0; i < n; i++) {
int a, t;
cin >> a >> t;
a--;
if(t == 1) update(0, 0, n - 1, a, 1);
else update(0, 0, n - 1, a, -1);
if(mx[0] <= 0) cout << '<' << '\n';
else if(mn[0] >= 0) cout << '>' << '\n';
else cout << '?' << '\n';
}
return 0;
}
