#include <stdio.h>
float fun();
int main() {
    int a=5;
    int b=6;
    int sum=0;
    sum=a+b;
    fun();
    printf("\nsum=%d",sum);
    return 0;
}

float fun(){
    float a=4;
    float b=5;
    float sum=0;
    sum=a+b;
    printf("sum=%f",sum);
    
}