#include <iostream>
using namespace std;

void decimal2octal(int decimal) {
    int oct_number[100];
    int i = 0;

    while (decimal > 0) {
        __________________________ //在此处填入代码

    }

    for (int j = i - 1; j >= 0; j--) {
        cout << oct_number[j];
    }
    cout << endl;
}