// 
#include<bits/stdc++.h>
using namespace std;
#define ull unsigned long long 
int n,m,num[25],len;//memest会死哎，但是flg=1的状态唯一应该不用记录都是对的
ull f[20][1<<17][2],K;
ull dfs(int cnt,int S,int flg){
    if(cnt<0)return 1;
    if(!flg&&f[cnt][S][K==10]!=-1)return f[cnt][S][K==10];
    int up=flg?num[cnt]:K-1;ull res=0;
    for(int i=0;i<=up;++i)if(((S>>i)&1)==0)res+=dfs(cnt-1,(S==0&&i==0)?0:(S|(1<<i)),flg&(i==up));
    if(!flg)f[cnt][S][K==10]=res;
    return res;
}
ull solve(ull x){
    ull tmp=x,len=0;
    while(tmp)num[len++]=tmp%K,tmp/=K;
    return dfs(len-1,0,1);
}
ull read(){
    string s;cin>>s;
    ull x=0;
    for(int i=0;i<s.size();++i){
        x=x*K;
        if(s[i]>='0'&&s[i]<='9')x+=s[i]-'0';
        else x+=s[i]-'a'+10;
    }return x;
}
int out[55];
void Print(ull x){
    // string a="";
    if(!x){
        cout<<"0\n";return ;
    }
    if(K==10){
        cout<<x<<"\n"; return ;
    }
    int c=0;
    while(x){
        out[++c]=x%K;x/=K;
    }
    reverse(out+1,out+c+1);
    for(int i=1;i<=c;++i){
        if(out[i]<10)cout<<out[i];
        else {
            char x='a'+out[i]-10;
            cout<<x;
        }
    }
    cout<<"\n";
}
signed main(){
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    memset(f,-1,sizeof f);
    ull T;cin>>T;
    while(T--){
        char op;cin>>op;
        if(op=='d')K=10;
        else K=16;
        ull opt;cin>>opt;
        if(opt){
            ull k=read();
            ull l=0,r=0;--r;
            // cout<<r<<'\n';
            if(solve(r)<k){
                cout<<"-\n";continue;
            }
            while(l<r){
                ull mid=l+r>>1;
                // cout<<l<<" "<<r<<"\n";
                if(solve(mid)<k)l=mid+1;
                else r=mid;
            }
            Print(l);
        }
        else {
            ull l=read(),r=read();
            // cout<<l<<" "<<r<<"\n";
            ull res=solve(r)-(l?solve(l-1):0);
            Print(res);
        }
    }
}
/*

6
d 0 10 20
h 0 10 1f
d 1 10
h 1 f
d 1 1000000000
h 1 ffffffffffffffff
*/