int main() { int m, n, k; int isUp = -1; cin >> m >> n >> k; p_m.totalNums = m; p_n.totalNums = n; for (int i=0; i<k; i++) { double tmp; cin >> tmp; double pm = p_m.add(tmp); double pn = p_n.add(tmp); if (i+1 >= n) { if (pm > pn && isUp != 1) { isUp = 1; cout << "BUY ON DAY " << i+1 << endl; } else if (pm < pn && isUp != 0) { isUp = 0; cout << "SELL ON DAY " << i+1 << endl; } } } return 0; }