#include <iostream>
#include <cstdio>
#include <vector>
#include <string>
#include <sstream>
#include <map>

using namespace std;

const int MAXV = 10001;

int n;

struct Cond {
    string val;
    int l, r;
    
    Cond() {
        l = -MAXV;
        r = MAXV;
    }
};
vector<Cond> data[1010];
map<string, Cond> M;

bool add(Cond cond) {
    Cond& c = M[cond.val];
    if (cond.l > c.l) {
        c.l = cond.l;
    }
    if (cond.r < c.r) {
        c.r = cond.r;
    }
    return c.l <= c.r;
}

bool caln(int a, int b) {
    M.clear();
    for (int i = 0; i < data[a].size(); i++) {
        if (!add(data[a][i])) {
            return false;
        }
    }
    for (int i = 0; i < data[b].size(); i++) {
        if (!add(data[b][i])) {
            return false;
        }
    }
    return true;
}

int main() {
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    cin >> n;
    scanf("\n");
    for (int i = 1; i <= n; i++) {
        string input;
        getline(cin, input);
        stringstream fin(input.c_str());
        string val, comma, oper;
        int num;
        while (fin >> val) {
            fin >> oper >> num;
            Cond cond;
            cond.val = val;
            if (oper == ">") {
                cond.l = num + 1;
                cond.r = MAXV;
            } else if (oper == ">=") {
                cond.l = num;
                cond.r = MAXV;
            } else if (oper == "<") {
                cond.l = -MAXV;
                cond.r = num - 1;
            } else if (oper == "<=") {
                cond.l = -MAXV;
                cond.r = num;
            } else if (oper == "==") {
                cond.l = cond.r = num;
            }
            data[i].push_back(cond);
            if (!(fin >> comma)) {
                break;
            }
        }
        
        bool unique = true;
        for (int j = 1; j < i; j++) {
            if (caln(i, j)) {
                if (!unique) {
                    printf(" ");
                }
                printf("%d", j);
                unique = false;
            }
        }
        if (unique) {
            printf("unique");
        }
        printf("\n");
    }
    return 0;
}