#include <iostream> #include <cmath> #include <cstring> using namespace std; int f[10001]; int E, F; int main() { //freopen("1.txt", "r", stdin); int t; cin >> t; while(t--) { cin >> E >> F; int weigh = F - E; for(int i = 0; i <= weigh; i++) f[i] = 99999999; f[0] = 0; int n; cin >> n; while(n--) { int p, w; cin >> p >> w; for(int i = w; i <= weigh; i++) f[i] = min(f[i], f[i - w] + p); } if(f[weigh] == 99999999) cout << "This is impossible./n"; else cout << "The minimum amount of money in the piggy-bank is " << f[weigh] << "./n"; } return 0; }
