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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7. int a[4];
  8. cin >> a[0] >> a[1] >> a[2] >> a[3];
  9. sort (a, a + 4);
  10. cout << (a[0] + a[3]) - (a[1] + a[2]) << '\n';
  11.  
  12. return 0;
  13. }
Success #stdin #stdout 0.01s 5388KB
stdin
0 0 1 1000
stdout
999