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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. for ( int a , b ; a<=b ; a++ ){
  6. cout << a ;
  7. }
  8. return 0;
  9. }
Success #stdin #stdout 0.01s 5284KB
stdin
1 10
stdout
Standard output is empty