#include<iostream> 
#include<string>
using namespace std;

class chest
{
    public:
string keytype;
int number;
void getdata()
{
    cin>>keytype>>number;
}
void display()
{
    cout<<keytype<<":"<<number<<endl;
}
};
int main()
{
    int n;
    cin >>n;
    for (int i=0;i<n;i++)
    {
    chest C;
    C.getdata;
    C.display;
    }
    return 0;
}