#include <cstdio>
#include <cstring>
#include <stack>
#include <vector>
using namespace std;
typedef long long int LLI;
#define NUM 1
#define POP 2
#define INV 3
#define DUP 4
#define SWP 5
#define ADD 6
#define SUB 7
#define MUL 8
#define DIV 9
#define MOD 10
#define MAX 1000000000
int main() {
	char command[10];
	bool quit = false;
	int n;
	LLI f, a, b;
	while (true) {
		vector<int> program;
		vector<LLI> num;
		while (true) {
			scanf("%s", command);
			if (strcmp(command, "QUIT") == 0) {
				quit = true;
				break;
			} else if (strcmp(command, "NUM") == 0) {
				scanf("%lld", &a);
				program.push_back(NUM);
				num.push_back(a);
			} else if (strcmp(command, "POP") == 0) {
				program.push_back(POP);
			} else if (strcmp(command, "INV") == 0) {
				program.push_back(INV);
			} else if (strcmp(command, "DUP") == 0) {
				program.push_back(DUP);
			} else if (strcmp(command, "SWP") == 0) {
				program.push_back(SWP);
			} else if (strcmp(command, "ADD") == 0) {
				program.push_back(ADD);
			} else if (strcmp(command, "SUB") == 0) {
				program.push_back(SUB);
			} else if (strcmp(command, "MUL") == 0) {
				program.push_back(MUL);
			} else if (strcmp(command, "DIV") == 0) {
				program.push_back(DIV);
			} else if (strcmp(command, "MOD") == 0) {
				program.push_back(MOD);
			} else if (strcmp(command, "END") == 0) {
				break;
			}
		}
		#if 0
		for (vector<int>::iterator i = program.begin(); i != program.end(); i++) {
			printf("%d ", *i);
		}
		puts("");
		printf("%lld\n", num);
		#endif
		if (quit) break;
		scanf("%d", &n);
		for (int i = 0; i < n; i++) {
			scanf("%lld", &f);
			stack<LLI> s;
			s.push(f);
			bool error = false;
			int inum = 0;
			for (vector<int>::iterator i = program.begin(); i != program.end(); i++) {
				if (*i == NUM) {
					s.push(num[inum++]);
				} else if (*i == POP) {
					if (!s.empty()) {
						s.pop();
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == INV) {
					if (!s.empty()) {
						a = s.top();
						s.pop();
						s.push(-a);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == DUP) {
					if (!s.empty()) {
						s.push(s.top());
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == SWP) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						s.push(a);
						s.push(b);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == ADD) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						a += b;
						if (a < -MAX || a > MAX) {
							puts("ERROR");
							error = true;
							break;
						}
						s.push(a);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == SUB) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						b -= a;
						if (b < -MAX || b > MAX) {
							puts("ERROR");
							error = true;
							break;
						}
						s.push(b);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == MUL) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						b *= a;
						if (b < -MAX || b > MAX) {
							puts("ERROR");
							error = true;
							break;
						}
						s.push(b);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == DIV) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						if (a == 0) {
							puts("ERROR");
							error = true;
							break;
						}
						b /= a;
						s.push(b);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				} else if (*i == MOD) {
					if ((int)s.size() >= 2) {
						a = s.top();
						s.pop();
						b = s.top();
						s.pop();
						bool sign = false;
						if (a < 0 || b < 0) sign = true;
						if (a == 0) {
							puts("ERROR");
							error = true;
							break;
						}
						b %= a;
						if (sign) {
							if (b > 0) b = -b;
						}
						s.push(b);
					} else {
						puts("ERROR");
						error = true;
						break;
					}
				}
			}
			if (!error) {
				if (s.size() == 1) printf("%lld\n", s.top());
				else puts("ERROR");
			}
		}
		puts("");
	}
	return 0;
}