#2re
#include<bits/stdc++.h>
#define int long long
using namespace std;
int n,cz[50005],k,len,x;
int fr[50005],kk,h;
string s;
int zhan[50005];
bool pd;
const int HH=1e9;
void f(){
len=0,h=0,pd=0;
zhan[++len]=x;
for(int i=1;i<=k;i++){
if(cz[i]==1) zhan[++len]=fr[++h];
else if(cz[i]==2) len--;
else if(cz[i]==3){
int t=-zhan[len];
zhan[len]=t;
}
else if(cz[i]==4){
int t=zhan[len];
zhan[++len]=t;
}
else if(cz[i]==5){
int t1=zhan[len],t2=zhan[len-1];
zhan[len-1]=t1;
zhan[len]=t2;
if(abs(t1)>HH||abs(t2)>HH){
pd=1;
return;
}
}
else if(cz[i]==6){
int t1=zhan[len],t2=zhan[len-1];
len-=2;
zhan[++len]=t1+t2;
if(abs(t1+t2)>HH){
pd=1;
return;
}
}
else if(cz[i]==7){
int t1=zhan[len],t2=zhan[len-1];
len-=2;
zhan[++len]=t2-t1;
}
else if(cz[i]==8){
int t1=zhan[len],t2=zhan[len-1];
len-=2;
zhan[++len]=t1*t2;
if(abs(t1*t2)>HH){
pd=1;
return;
}
}
else if(cz[i]==9){
int t1=zhan[len],t2=zhan[len-1];
len-=2;
zhan[++len]=t2/t1;
if(t1==0){
pd=1;
return;
}
}
else{
int t1=zhan[len],t2=zhan[len-1];
len-=2;
zhan[++len]=t2%t1;
if(t1==0){
pd=1;
return;
}
}
}
}
signed main(){
while(1){
cin>>s;
int qwq;
if(s=="NUM") cin>>qwq,cz[++k]=1,fr[++kk]=qwq;
else if(s=="POP") cz[++k]=2;
else if(s=="INV") cz[++k]=3;
else if(s=="DUP") cz[++k]=4;
else if(s=="SWP") cz[++k]=5;
else if(s=="ADD") cz[++k]=6;
else if(s=="SUB") cz[++k]=7;
else if(s=="MUL") cz[++k]=8;
else if(s=="DIV") cz[++k]=9;
else if(s=="MOD") cz[++k]=10;
else break;
}
cin>>n;
for(int i=1;i<=n;i++){
cin>>x;
f();
if(pd==1||len!=1){
cout<<"ERROR\n";
continue;
}
cout<<zhan[len]<<endl;
}
return 0;
}