#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <ctype.h>
#include <stack>
#include <iostream>
#include <vector>

using namespace std;

typedef struct {
	int c;
	int p;
} command;

#define BUFLEN 1024

vector<command> prog;

void solve( int input );

int main(int argc, char *argv[]) {
	argc = argc;
	argv = argv;
	
		bool quit = true;
	char buffer[BUFLEN];
	while(quit)
	{
		bool end = false;
		while( true )
		{
			string s;
			fgets(buffer, BUFLEN, stdin);
			s = buffer; 
			if ( buffer[0] == 'Q')
			{
				return 0;
			}
			else 
			{
				command com;
				if (strlen(buffer) < 3)
					continue;
				s = s.substr(0, 3);
				if ( s.compare( "NUM" ) == 0)
				{
					com.c = 0;
					sscanf(buffer +3 , "%d", &com.p);
				}
				else if ( s.compare("POP" ) == 0 )
					com.c = 1;
				else if ( s.compare("INV" ) == 0 )
					com.c = 2;
				else if ( s.compare("DUP" ) == 0 )
					com.c = 3;
				else if ( s.compare("SWP" ) == 0 )
					com.c = 4;
				else if ( s.compare("ADD" ) == 0 )
					com.c = 5;
				else if ( s.compare("SUB" ) == 0 )
					com.c = 6;
				else if ( s.compare("MUL" ) == 0 )
					com.c = 7;
				else if ( s.compare("DIV" ) == 0 )
					com.c = 8;
				else if ( s.compare("MOD" ) == 0 )
					com.c = 9;
				else if ( s.compare("END" ) == 0 )
				{
					break;
				}
				
				prog.push_back( com );
			}
			
			
		}
		int aux = 0;
		fgets(buffer, BUFLEN, stdin);
		sscanf(buffer, "%d", &aux);
		for ( int i = 0; i < aux; i++ )
		{
			int in;
			fgets(buffer, BUFLEN, stdin);
			sscanf( buffer, "%d", &in);
			solve( in );
		}
		fgets(buffer, BUFLEN, stdin);
		printf("\n");
		prog.clear();
	}
	
	return 0;
}

void solve( int input )
{
	stack<int> memory;
	memory.push( input );

	for ( unsigned int i = 0; i < prog.size(); i++ )
	{
		switch( prog[i].c )
		{
			case 0 : memory.push( prog[i].p );break;
			case 1: memory.pop(); break;
			case 2:
			{
				long long aux = memory.top();
				memory.pop();
				memory.push( aux * ( -1 ) );
			}break;
			case 3: memory.push( memory.top() ); break;
			case 4:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR\n" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				memory.push( aux );
				memory.push( aux2);
				
			}break;
			case 5:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				if ( llabs( aux + aux2 ) > 1000000000 )
				{
					printf("ERROR\n" );
					return;
				}	
				else
					memory.push( aux + aux2 );
			}break;
			case 6:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR\n" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				if ( llabs( aux - aux2 ) > 1000000000 )
				{
					printf("ERROR\n" );
					return;
				}	
				else
					memory.push( aux - aux2 );
			}break;
			case 7:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				if ( llabs( aux * aux2 ) > 1000000000 )
				{
					printf("ERROR\n" );
					return;
				}	
				else
					memory.push( aux * aux2 );
			}break;
			case 8:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR\n" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				if ( ( aux2== 0 ) || (llabs( aux / aux2 ) > 1000000000 ) )
				{
					printf("ERROR\n" );
					return;
				}	
				else
					memory.push( aux / aux2 );
			}break;
			case 9:
			{
				if ( memory.size() < 2 )
				{
					printf("ERROR\n" );
					return;
				}
				long long aux = memory.top();
				memory.pop();
				long long aux2 = memory.top();
				memory.pop();
				if ( llabs( aux % aux2 ) > 1000000000 )
				{
					printf("ERROR\n" );
					return;
				}	
				else
					memory.push( aux % aux2 );
			}break;
		}
	}
	
	if ( memory.size() > 1 )
	{
		printf("ERROR\n" );
		return;
	}
	else
		printf("%d\n", memory.top() );
}