#include<iostream>
using namespace std;
string s;
int main(){
    cin>>s;
    int ls=s.length();
    for(int i=0;i<ls-1;i++){
        if(s[i]=='A'&&s[i+1]=='C'){
            cout<<"Yes";
            return 0;
        }//在？AC？给个superuser？
    }
    cout<<"No";
    return 0;
}//by Royal