#include <iostream>
#include <string>
#include <set>
#include <iomanip>
#include <cmath>
#include <vector>
using namespace std;
using ll = long long;
int main(){
for(int i = 0; i < 1000; i ++) cout << "C";
/*
int n, k;
string s;
cin >> n >> k >> s;
int now = k;
int min_n = 1e9;
for(int i = 0; i < n; i++){
now -= (s[i] - 'B');
if(min_n > now) min_n = now;
}
cout << (min_n < 0 ? -min_n : 0);
*/
return 0;
}
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