#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <algorithm>
using namespace std;
FILE *f=fopen("secv8.in","r");
FILE *g=fopen("secv8.out","w");
struct treap
{
int key,prio,sz;
bool rev;
treap *l,*r;
treap(int k,int p,int s,bool R,treap* a,treap* b)
{
key=k;
prio=p;
sz=s;
rev=R;
l=a;
r=b;
}
}*T,*nill;
void refrsize(treap* &T)
{
if(T==nill)return;
T->sz=T->l->sz+1+T->r->sz;
}
void refrrev(treap* &T)
{
if(T==nill||!T->rev)return;
T->rev=0;
swap(T->l,T->r);
T->l->rev^=1;
T->r->rev^=1;
}
void rotst(treap* &T)
{
treap* tmp;
tmp=T->l;
T->l=tmp->r;
tmp->r=T;
T=tmp;
refrsize(T->r);
refrsize(T);
}
void rotdr(treap* &T)
{
treap* tmp;
tmp=T->r;
T->r=tmp->l;
tmp->l=T;
T=tmp;
refrsize(T->l);
refrsize(T);
}
int fi(treap* &T,int pos)
{
refrrev(T);
if(T==nill)return 0;
else if(T->l->sz+1==pos)return T->key;
else if(T->l->sz+1>pos)return fi(T->l,pos);
else return fi(T->r,pos-T->l->sz-1);
}
void balance(treap* &T)
{
refrsize(T);
refrrev(T);
refrrev(T->l);
refrrev(T->r);
if(T->prio<T->l->prio)rotst(T);
else if(T->prio<T->r->prio)rotdr(T);
}
void ins(treap* &T,int pos,int key,int prio)
{
if(T==nill)
{
T=new treap(key,prio,1,0,nill,nill);
return;
}
refrrev(T);
if(pos<=T->l->sz+1)
ins(T->l,pos,key,prio);
else
ins(T->r,pos-T->l->sz-1,key,prio);
refrsize(T);
balance(T);
}
void del(treap* &T,int pos)
{
refrrev(T);
if(T->l==nill&&T->r==nill)
{
delete T;
T=nill;
return ;
}
if(T->l->sz+1==pos)
{
if(T->l->prio<T->r->prio)
{
refrrev(T);
refrrev(T->r);
rotdr(T);
del(T->l,T->l->l->sz+1);
}
else
{
refrrev(T);
refrrev(T->l);
rotst(T);
del(T->r,T->r->l->sz+1);
}
}
else if(T->l->sz+1>pos)
{
del(T->l,pos);
}
else
{
del(T->r,pos-1-T->l->sz);
}
refrsize(T);
}
treap* join(treap* &T1,treap* &T2)
{
treap* t=new treap(0,1,1,0,T1,T2);
del(t,t->l->sz+1);
return t;
}
pair<treap*,treap*> split(treap* &T,int pos)
{
treap *a,*b;
ins(T,pos,0,1<<30);
a=T->l;
b=T->r;
return {a,b};
}
void rev(treap* &T,int x,int y)
{
pair<treap*,treap*> tmp;
treap *T1,*T2,*T3;
tmp=split(T,y+1);
T3=tmp.second;
T2=tmp.first;
tmp=split(T2,x);
T2=tmp.second;
T1=tmp.first;
T2->rev^=1;
T=join(T1,T2);
T=join(T,T3);
}
void de(treap* &T,int x,int y)
{
pair<treap*,treap*> tmp;
treap *T1,*T2,*T3;
tmp=split(T,y+1);
T3=tmp.second;
T2=tmp.first;
tmp=split(T2,x);
T2=tmp.second;
T1=tmp.first;
T2->rev^=1;
T=join(T1,T3);
}
char C;
int x,y;
int N,M;
void print(treap* &T)
{
if(T==nill)return ;
refrrev(T);
print(T->l);
fprintf(g,"%d ",T->key);
print(T->r);
}
int myrand()
{
int x=rand()%10000;
return abs(x)+1;
}
int main()
{
srand(time(NULL));
nill=new treap(0,0,0,0,NULL,NULL);
T=nill;
fscanf(f,"%d %d\n",&N,&M);
for(int i=1;i<=N;i++)
{
fscanf(f,"%c",&C);
if(C=='I')
{
fscanf(f,"%d %d\n",&x,&y);
ins(T,x,y,myrand());
}
else if(C=='A')
{
fscanf(f,"%d\n",&x);
fprintf(g,"%d\n",fi(T,x));
}
else if(C=='R')
{
fscanf(f,"%d %d\n",&x,&y);
rev(T,x,y);
}
else if(C=='D')
{
fscanf(f,"%d %d\n",&x,&y);
de(T,x,y);
}
}
print(T);
fclose(f);
fclose(g);
return 0;
}