#include <iostream>#include <cstdio>#include <cmath>using namespace std;int main(){ int tc, c = 0; long long sum, tmp1, tmp2, n , m; cin >> tc; while (tc--){ c++; cin >> n >> m; if (n > 0 && m > 0){ tmp1 = (n+m); tmp2 = (m-n+1); sum = tmp1 * tmp2 / 2; } else if (n < 0 && m < 0){ n = abs(double(n)); m = abs(double(m)); tmp1 = (n+m); tmp2 = (n-m+1); sum = tmp1 * tmp2 / 2; sum = -sum; } else{ n = abs(double(n)); m = abs(double(m)); if (n > m){ tmp1 = (n+m+1); tmp2 = (n-m); sum = tmp1 * tmp2 / 2; sum = -sum; } else{ tmp1 = (n+m+1); tmp2 = (m-n); sum = tmp1 * tmp2 / 2; } } printf("Scenario #%d:n%lldnn", c, sum); }}
