please genarate concise comments for the following code:#include
 int main(){
    int x = 0;
    int y = 0;
    char a = 'a';
    char b = 'b';
    a = getchar();
    scanf("%d%d",&x,&y);
    b=getchar();

    printf("%d %d %c %c",x,y,a,b);
 } You just need to tell me the purpose of this code and control your answer into 2 sentences.