1+1=3

#include<iostream>
using namespace std;
int main(){
    string a,c={"10X98765432"};
    cin>>a;
    int n=0,b[17]={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};
    for(int i=0;i<17;i++){
        if(a[i]=='X') n+=10*b[i];
        else n+=(a[i]-'0')*b[i];
    }
    n%=11;
    if(a[17]==c[n])cout<<"Yes";
    else cout<<"No";
}