- #include <bits/stdc++.h> 
- using namespace std; 
- int main() { 
-     vector <int> a; 
-     int temp; 
-     while (cin >> temp) { 
-         a.push_back(temp); 
-         if (cin.get() == '\n') { 
-             break; 
-         } 
-     } 
-     for (int i = 0; i < a.size(); i++) { 
-         if (a[i] % 4 == 0) { 
-             cout << i + 1; 
-         } 
-     } 
-     return 0; 
- } 
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