#include #include #include #include #include #define rep(i,n) for(i=0; i> a #define out(a,b) cout << a << b using namespace std; using lint = long long; int main(void){ int i, j; int n, m; in(n); vector> x(n,vector (2)); rep(i,n){ in(x[i][0]); in(x[i][1]); } rep(i,n){ int k=x[i][0], l=x[i][1]; k