#include "testlib.h"
#include<string>
#include<cassert>
using namespace std;

const int MIN_N = 2;
const int MAX_N = 100'000;
const int MAX_SUM_S = 200'000;
const int MIN_S = 2;
const int MAX_S = 100'000;

int main() {
    registerValidation();

    int N=inf.readInt(MIN_N,MAX_N);
    inf.readEoln();

    int sum_s=0;
    for(int i = 0; i < N; i++) {
        string s = inf.readString();
        for(int j = 0; j < (int)s.size(); j++) {
            assert('a' <= s[j] && s[j] <= 'z');
        }
        sum_s += s.size();
        assert((int)s.size() <= MAX_S);
    }
    inf.readEof();
    
    assert(sum_s <= MAX_SUM_S);
}