上一个没用代码块，重发一个

#include<bits/stdc++.h>
using namespace std;
int a[110], c[110];
void chu13(string sa) {
    int la = sa.size(), x = 0;
    for (int i = 0; i < la; i++) a[i] = sa[i] - '0';
    for (int i = 0; i < la; i++) {
        c[i] = (x * 10 + a[i]) / 13;
        x = (x * 10 + a[i]) % 13;
    }
    int st = 0;
    while (c[st] == 0 && st < la) st++;
    for (int i = st; i < la; i++) cout << c[i];
    cout << endl << x;
}
int main() {
	string sa;
    cin >> sa;
    chu13(sa);
    return 0;
}