# include <stdio.h>
# include <string.h>
# include <algorithm>
// # include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int M = 5e5 + 10;
const int mod = 1e9+7;

# define RG register
# define ST static

int n = 100000, l = 20;

int main() {
    printf("%d %d\n", n, l);
    for (int i=1; i<=n; ++i) 
        printf("%c", (char)(rand()%26+‘a‘));
    return 0;
}