- #include <cstdio> 
-   
- int your_function(int a, int b) 
- { 
-   return a - b; 
- } 
-   
- int main(void) 
- { 
-     int i = 10; 
-   
-     //printf + function call expression 
-     printf("%d - %d - %d\n", i, your_function(++i, ++i), i); 
-     //nested function calls to custom function: 
-     //you may expect 12 - (12 - 13) = 12 - (-1) = 13 
-     printf("%d\n", your_function(i, your_function(i++, i))); 
-     return 0; 
- } 
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