#include<stdio.h>
main(){
int  a, b, c,sum;				/*ĸͱ*/
scanf (%d, %d, %d, &a, &b, &c);	/*scanfӼθֵabc*/
sum = a + b + c ;	  /*abcӺֵsum*/
printf("sum = %d \n", sum);	 
}

