#include <iostream>

using namespace std;

int main(void)
{
    int n, m;

    while (cin >> n >> m) {
        if (n <= 0 || m <= 0) break;
        if (n > m) {
            swap(n, m);
        }
        int sum = 0;
        for (int i = n; i <= m; i++) {
            cout << i << ' ';
        }
        printf("Sum=%d\n", sum);
    }

    return 0;
}