站外题，代码：

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define fst ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define endl '\n'
#define fir first
#define sec second
const int N=1e6+5;
const int INF=0x3f3f3f3f3f3f3f3f;
int ans=0;
void in(int a[],int n){
	while(n--){
		cin >> *a;
		a++;
	}
}

int n,m,t;
string a,b;
int fp(int x,int y){
	if(y==0)return 1;
	if(y==1)return x;
	if(x>1e15)return INF;
	int res=fp(x,y/2);
	if(res>1e8)return INF;
	if(y&1){
		int res2=res*res;
		if(res2>(1e15+x-1)/x)return INF;
		res2*=x;
		if(res2>1e15)return INF;
		return res2;
	}else{
		int res2=res*res;
		if(res2>1e15)return INF;
		return res2;
	}
}

signed main(){
//	freopen("string.in","r",stdin);
//	freopen("string.out","w",stdout);
	cin >> n >> m >> t;
	cin >> a >> b;
	while(t--){
		int x;
		cin >> x;
		int res=935;
		bool ab=0;
		int num=x;
		for(;res;res--){
			int pla=fp(2,res);
			if(pla==INF || (pla/2*n+pla/2*m)/2>=num){
				//do nothing
			}else{
				ab^=1;
				num-=(pla/2*n+pla/2*m)/2;
			}
		}
		if(ab==1){
			cout << b[num-1];
		}else{
			cout << a[num-1];
		}
		cout << endl;
	}
	return 0;
}