/*
/\ /\
| ).|.( |
| >-< |
=========
It's Adilkhan99 miaaaaaau
*/
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define endl "\n"
#define foreach(it, S) for(__typeof (S.begin()) it = S.begin(); it != S.end(); it++)
#define mp make_pair
#define f first
#define s second
#define name ""
#define _ ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
using namespace std;
const int MaxN = int (2e5) + 256;
const int INF = int(1e9);
const int mod = (int)(1e9) + 7;
int n, a[MaxN], m, t;
set<int> s, S;
bool u[MaxN], U[MaxN];
int main () {
scanf("%d", &n);
for(int i = 1; i <= n; ++i){
int x, y; scanf("%d%d", &x, &y);
if(y == 2){
if(!u[x]){
S.insert(-x);
U[x] = 1;
}else{
s.erase(-x);
u[x] = 0;
}
}
else{
if(!U[x]){
s.insert(-x);
u[x] = 1;
}else{
S.erase(-x);
U[x] = 0;
}
}
auto I = s.begin();
auto J = S.begin();
bool ok = 0, ok1 = 0;
if(s.size() > S.size())
ok = 1;
if(S.size() > s.size())
ok1 = 1;
while(I != s.end() && J != S.end()){
if(ok && ok1){
break;
}
if(-(*I) > -(*J))
ok = 1;
if(-(*I) < -(*J))
ok1 = 1;
I++;
J++;
}
if(ok && ok1)
puts("?");
else if(ok)
puts(">");
else puts("<");
}
return 0;
}
