#include <bits/stdc++.h>
using namespace std;
string s;
int n,l,r;
int main(){
cin>>s;
n=s.length();
for (int i=0;i<n;i++){


if (s[i]=='N'){
l=i;r=l;
while (s[r]=='N'){
r++;
}
if (s[l-1]=='R'&&s[r]=='L'){
for (int l1=l,r1=r-1;l1<r1;l1++,r1--){
s[l1]='R';s[r1]='L';
}
}
else if (s[l-1]=='R'){
for (int j=l;j<r;j++){
s[j]='R';
}
}
else if (s[r]=='L'){
for (int j=l;j<r;j++){
s[j]='L';
}
}
i=r-1;
}

}
cout<<s;
return 0;


}