#include <fstream>

using namespace std;

ifstream in("buline.in");
ofstream out("buline.out");

const int sizee = 200000;
int n, val, type, v[2 * sizee + 2];
int summy, smax, lf, rg;

int main(){
    in>>n;
    for(int i = 1; i <= n; i++){
        in>>val>>type;
        v[i] = val * (type ? 1 : -1);
        v[n + i] = v[i];
    }
    for(int i = 1; i <= n; i++){
        out<<v[i]<<"\n";
    }
    return 0;
}