腐朽学神的正经题解，但是太太太正经了

#include <iostream>
#include <cstdio>
using namespace std;

long long n;
long long cnt;

int main() {
    for (long long a = 0; a <= 9; a++)
        for (long long b = 0; b <= 9; b++)
            for (long long c = 0; c <= 9; c++) {
                string e = {(char)(a+48),(char)(b+48),(char)(c+48),(char)(a+48),(char)(b+48)};
                if (((stoll(e)*a)%111111) == 0) {
                    if (stoll(e) >= 10000) {
                        printf("学:%lld\n习:%lld\n再:%lld\n优:%c\n", a, b, c, to_string((stoll(e)*a)/111111)[0]);
                    }
                }
            }
    return 0;
}

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