num22.1

#include <iostream>
using namespace std;

int F(int x) {
    int L = 0;
    int M = 0;
    while (x > 0) {
        L = L + 1;
        if(M < x) {
            M = x % 10;
        }
        x = x / 10;
    }
    return L * 10 + M;
}

int main() {
    for (int w = 999; w > 0; w--) {
        if (F(w) == 37) {
            cout << w;
            break;
        }
    }
    return 0;
}