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 | 
 #include <iostream>
 using namespace std;
 
 const int N = 1e5 + 10;
 
 int a[N],b[N];
 int n, m, x;
 
 int main(){
 cin>>n>>m>>x;
 
 for(int i = 0; i < n; i++) cin>>a[i];
 for(int i = 0; i < m; i++) cin>>b[i];
 
 for(int i = 0; i < n; i++)
 for(int j = 0; j < m; j++){
 if(a[i] == b[j]) cout<<i<<" "<<j;
 }
 return 0;
 }
 
 #include <iostream>
 using namespace std;
 
 const int N = 1e5 + 10;
 
 int a[N],b[N];
 int n, m, x;
 
 int main(){
 cin>>n>>m>>x;
 
 for(int i = 0; i < n; i++) cin>>a[i];
 for(int i = 0; i < m; i++) cin>>b[i];
 
 for(int i = 0; i < n; i++){
 int j = 0;
 while(a[i] + b[j] < x && j <= m - 1) j ++;
 if(a[i] + b[j] == x && j <= m - 1) cout<<i<<" "<<j;
 }
 
 
 return 0;
 }
 
 
 #include <iostream>
 using namespace std;
 
 const int N = 1e5 + 10;
 
 int a[N],b[N];
 int n, m, x;
 
 int main(){
 cin>>n>>m>>x;
 
 for(int i = 0; i < n; i++) cin>>a[i];
 for(int i = 0; i < m; i++) cin>>b[i];
 
 for(int i = 0, j = m - 1; i < n; i++){
 
 while(j >= 0 && a[i] + b[j] > x) j--;
 if(a[i] + b[j] == x) cout<<i<<" "<<j;
 }
 
 return 0;
 }
 
 |