#include <bits/stdc++.h>

using namespace std;
ifstream fin ("perle.in");
ofstream fout ("perle.out");

    int n,dim;
    char c[10005],ch;

void Citire()
{
    int k=-1;
    fin >> ch;
    int dim=ch-'0';
    for(int i=1;i<=dim;i++)
    {
    fin >>ch;
    if(isdigit(ch))c[++k]=ch;
    }
}

void Clean()
{
    for(int i=strlen(c)-1;i>=0;i--)c[i]=NULL;
}

void Solve()
{

}

int main()
{
    fin >> n;
    fin.get();
    for(int i=1;i<=n;++i)
    {
        Citire();
        fout <<dim << " " << c <<'\n';
        Clean();
    }


    return 0;
}