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- #include<bits/stdc++.h>
- using namespace std;
- typedef long long ll;
- int main()
- {
- ll n,i=0,j=9,k,a;
- string s,as;
- as.assign(10,'0');
- cin>>n;
- cin>>s;
- for(k=0; k<n; k++)
- {
- if(s[k]=='L')
- {
- for(i=0; i<9; i++)
- {
- if(as[i]=='0')
- as[i]='1';
- break;
- }
- }
- else if(s[k]=='R')
- {
- for(j=9; j<=0; j--)
- {
- if(as[j]=='0')
- as[j]='1';
- break;
- }
- }
- else
- {
- as[s[k]-'0']='0';
- }
- }
- cout<<as<<endl;
- return 0;
- }
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