opana

#include <iostream>

using namespace std;

int main()
{
    int s = 0;
    for(int i = 0; i < 2020; i+= 2000){
        for(int j = 0; j < 2020; j+= 1000){
            for(int k = 0; k < 2020; k+= 500){
                for(int z = 0; z < 2020; z+= 200){
                    for(int x = 0; x < 2020; x+= 100){
                        for(int y = 0; y < 2020; y+= 50){
                            for(int q = 0; q < 2020; q+= 10){
                                for(int w = 0; w < 2020; w+=5){
                                    if(i+j+k+z+x+y+q+w == 2020){
                                        s++;
                                        cout << i+j+k+z+x+y+q+w << endl;
                                        cout << i << " " << j << " " << k << " " << z << " " << x << " " << y << " " << q << " " << w;
                                        cout << endl;
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    cout << s;
    return 0;
}