#include <bits/stdc++.h>
#define For(i,a,b) for(int i=a;i<=b;i++)
#define Rev(i,a,b) for(int i=a;i>=b;i--)
#define Fin(file) freopen(file,"r",stdin)
#define Fout(file) freopen(file,"w",stdout)
using namespace std;
const int N=0; typedef long long ll;
void Path(){
    int n; string s; cin>>n>>s; n*=2; replace(s.begin(),s.end(),'U','('); replace(s.begin(),s.end(),'R',')');
    int mn=0,x=-1; for(int i=0,ss=0;i<n;i++) if((s[i]=='('?++ss:--ss)<mn) mn=ss,x=i+1;
    cerr<<"x="<<x<<'\n';
    if(mn==0) return cout<<s<<'\n'<<0<<'\n',void();
    else{
        s+=')'; int k=count(s.begin(),s.begin()+x,')');
        rotate(s.begin(),s.begin()+x,s.end()); s.pop_back(); cout<<s<<'\n'<<k<<'\n';
    }
}
void Brackets(){
    int n,k; string s; cin>>n>>s>>k; n*=2;
    if(k!=0){
        int x=-1; for(int i=n-1;;i--) if(s[i]==')'&&!--k) { x=i+1; break; }
        s+=')'; rotate(s.begin(),s.begin()+x,s.end()); s.pop_back();
    }
    replace(s.begin(),s.end(),'(','U'); replace(s.begin(),s.end(),')','R');
    cout<<s<<'\n';
}
signed main(){
    string cmd; cin>>cmd; cmd=="path"?Path():Brackets();
    cerr<<"Time = "<<clock()<<" ms\n";
    return 0;
}

// START TYPING IF YOU DON'T KNOW WHAT TO DO