동작하기는 하는데 에러부분이 생긴다

package main
/*
#include<stdio.h>
#include<string.h>
void Even_Odd(){
       int a=0;
       printf("data input >>> ");
       scanf("%d", &a);
       if(a%2 == 0) {
              printf("%d is even number \n", a);
       } else {
              printf("%d is odd number \n", a);
       }
}
 */
import "C"
func main() {
       C.Even_Odd()
}

# command-line-arguments
./STR.go: In function ‘Even_Odd’:
./STR.go:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &a);
  ^
data input >>> 222
222 is even number