#include<iostream>
using namespace std;
int main()
{
string s;
int line=0;
while(getline(cin,s))
{
if(s.length()==1) cout<<"No\n";
else
{
if(s[s.length()-1]=='\\') cout<<"Yes\n";
else cout<<"No\n";
}
}

}

您的答案為: No
正確答案為: Yes