题解

#include <iostream>
#include <string>
using namespace std;
int main(){
	string a;
	cin>>a;
	int n,x;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>x;
		if(x==1){
            string b;
			cin>>b;
			a+=b;
		}
        if(x==2){
			cout<<a.size()<<endl;
		}
        if(x==3){
            string b;
			cin>>b;
			if(a>b){
                cout<<a<<endl;
            }else{
                cout<<b<<endl;
            }
		}
	}
	return 0;
}