#include <iostream>
using namespace std;

int main() {
    int m, cube, average, first;
    cin>>m;
    cube = m*m*m;
    first = cube/m-m+1;
    for(int i = 0;i<m;i++){
        cout << first + 2*i;
        if(m-i==1)
            break;
        cout <<"+";
    }
}
// 64 位输出请用 printf("%lld")