#include<stdio.h>
signed main(){
    int a,b,c;
    scanf("%d %d %d",&a,&b,&c);
    if(a==b && b==c && a==c){
        printf("No\n");
    }else{
        if(a==b || b==c || a==c){
            printf("Yes\n");
        }else{
            printf("No\n");
        }
    }
    return(0);
}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

Measured memory_bytes: 1636