#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <stack>

using namespace std;



#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

char str[8];

int cmd[100100];
int param[100100];
int n, m;


int error = 0;
stack < int > v;
inline int pop( void ) {
//  printf("pop %d\n", v.size());
  if ( v.empty() ) { error = 2; return 0; }
  int x = v.top();
  v.pop();
  return x;
}
inline void push( int x ) {
//  printf("push %d\n", x);
  v.push( x );
}
inline void pushll( long long x ) {
  if ( x < -1000000000 || x > 1000000000 ) error = 1;
  push( (int)x );
}

int evaluate( int x ) {
  while ( !v.empty() ) v.pop();
  push( x );
  for ( int i = 0; i < m; ++i ) {
//    printf("i=%d m=%d cmd=%d num=%d\n", i, m, cmd[i], param[i]);
    switch ( cmd[i] ) {
      case NUM: push( param[i] ); break;
      case POP: pop(); break;
      case INV: push( -pop() ); break;
      case DUP: { int x = pop(); push( x ); push( x ); break; }
      case SWP: { int a = pop(); int b = pop(); push( a ); push( b ); break; }
      case ADD: pushll( pop() + pop() ); break;
      case SUB: { int a = pop(); int b = pop(); pushll( b - a ); break; }
      case MUL: pushll( (long long)pop() * pop() ); break;
      case DIV: { int a = pop(); int b = pop(); if ( a == 0 ) { error = 1; return 0; } push( b / a ); break; }
      case MOD: { int a = pop(); int b = pop(); if ( a == 0 ) { error = 1; return 0; } push( b % a ); break; }
    };
    if ( error ) return 0;
  }
  
  if ( v.size() != 1 ) error = 2;
  return pop();
}


int main(void) {

  for ( ;; ) {
    for ( m = 0; ; ++m ) {
      scanf("%s", str);
      if ( strcmp( str, "QUIT" ) == 0 ) return 0;
      if ( strcmp( str, "NUM" ) == 0 ) { scanf("%d", param + m); cmd[m] = NUM; }
      if ( strcmp( str, "END" ) == 0 ) break;
#define T(c) if ( strcmp( str, #c ) == 0 ) cmd[m] = c;

      T( POP );
      T( INV );
      T( DUP );
      T( SWP );
      T( ADD );
      T( SUB );
      T( MUL );
      T( DIV );
      T( MOD );
    }
    
    scanf("%d", &n);
    for ( int i = 0; i < n; ++i ) {
      int x;
      scanf("%d", &x);
      error = 0;
      int y = evaluate( x );
      if ( error == 2 ) {
        for ( int k = 0; k < n; ++k )
          printf("ERROR\n");
        for ( int k = 1; k < n; ++k )
              scanf("%d", &x);
        break;
      }
      if ( error ) printf("ERROR\n"); else printf("%d\n", y);
    }
    printf("\n");
  }

  return 0;
}