#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[])
{
if (argc == 3) {
int i;
int num[3];

for (i = 0; i < 3; i++) {
num[i] = atoi(argv[i]);
}

if (num[0]+num[1] == num[2] || num[1]+num[2] == num[0] || num[2]+num[0] == num[1])
printf("Yes\n");
else
printf("No\n");

} else
printf("No\n");
retrun 0;
}