#include<bits/stdc++.h>
#define LL long long
#define SZ(x) ((LL)(x.size()))
using namespace std;
long long read(){
  long long q=0,w=1;
  char ch=getchar();
  while(ch>'9' || ch<'0'){if(ch=='-')w=-1;ch=getchar();}
  while(ch>='0'&&ch<='9'){q=q*10+(ch-'0');ch=getchar();}
  return q*w;
}
void write(LL x){
  if(x<0){putchar('-');x=(-x);}
  if(x>9)write(x/10);
  putchar('0'+x%10);
}
void writeln(LL x){write(x);puts("");}
void writecs(LL x){write(x);putchar(' ');}

#define PLL pair<LL,LL>
#define mp(a,b) make_pair(a,b)
#define fir first
#define sec second
const long long N = 300000+95;
long long T;vector<PLL>vc,tr[N];LL n;

void add(LL a,LL b){
  vector<PLL>nt;LL SUM=0;
  for(LL i=0;i<SZ(vc);i++){
    LL l=SUM+1,r=SUM+vc[i].fir;SUM+=vc[i].fir;
    if(r<a)nt.push_back(mp(vc[i].fir,vc[i].sec));
    else if(l<=a&&a<=r){
      if(a==r)nt.push_back(mp(vc[i].fir,vc[i].sec+b));
      else {
	nt.push_back(mp(a-l+1,b));
	nt.push_back(mp((r-a),vc[i].sec));
      }
    }
    else nt.push_back(mp(vc[i].fir,vc[i].sec));
  }
  if(SUM<a)nt.push_back(mp(a-SUM,b));
  vc=nt;return ;
}
void del(LL a,LL b){
  if(a>1)add(a-1,b);
  while(SZ(vc)&&vc.back().sec<=b){b-=vc.back().sec;vc.pop_back();}
  if(SZ(vc))vc.back().sec-=b;
  return ;
}
int main(){
  T=read();
  for(LL TC=1;TC<=T;TC++){
    char opt;cin>>opt;
    if(opt=='+'){
      LL a=read(),b=read();
      add(a,b);
    }
    else if(opt=='-'){
      LL a=read(),b=read();
      del(a,b);
    }
    else if(opt=='R'){
      LL u=read();
      vc=tr[TC-u-1];
    }
    else if(opt=='?'){
      LL q=read();q++;PLL ans=mp(-1,-1);LL fl=0;
      for(LL i=0;i<SZ(vc)&&(!fl);i++){
	LL SUM=0;
	for(LL j=i;j<SZ(vc)&&(!fl);j++){
	  LL l=SUM+2,r=SUM+vc[i].fir+vc[j].sec;
	  if(l<=q&&q<=r){
	    //	    cout<<" - > i = "<<i<<" j = "<<j<<" l = "<<l<<" r = "<<r<<endl;
	    LL x=0,y=0;
	    for(LL k=0;k<i;k++)x+=vc[k].fir;
	    for(LL k=SZ(vc)-1;k>j;k--)y+=vc[k].sec;
	    LL X=min(((q-1)-SUM),vc[i].fir);
	    LL Y=min((q-(SUM+X)),vc[j].sec);
	    //	    cout<<" x = "<<x<<" y = "<<y<<" X = "<<X<<" Y = "<<Y<<" SUM = "<<SUM<<endl;
	    ans=mp(x+(vc[i].fir-X+1),y+(vc[j].sec-Y+1));fl=1;break;
	  }
	  SUM+=vc[j].sec;
	  if(j+1<SZ(vc))SUM+=vc[j+1].fir;
	}
      }
      if(!fl){puts("-1 -1");continue;}
      writecs(ans.fir);writeln(ans.sec);
      /*      for(LL i=0;i<SZ(vc);i++)
	cout<<" i = "<<i<<" vc[i].fir = "<<vc[i].fir<<" vc[i].sec = "<<vc[i].sec<<endl;
	cout<<endl;*/
    }
    tr[TC]=vc;
  }
  return 0;
}
/*
my test data:
input:
3
+ 2 8
- 2 1
? 7
output:
1 3
*/