#include <stdio.h>                                                              
        /*    bool is_unsigned(unsigned int a) {                                              
                return true;                                                                
            }                            */                                                  
         int is_unsigned(int a) {                                                       
                return a;                                                               
            }                                                                               
            int main() {                                                                    
                unsigned int a = 2;                                             
                int b = -5;                                                             
                printf("%d\n", is_unsigned(a + b));                                         
                return 0;                                                                   
            }