#include <iostream>
#include <stdio.h>
using namespace std;
int n, x;
int main()
{
while (1)
{
cin>>n;
cout<<n<<endl;
if ((n<10)||(n>99))
{
return 0;
}
if (n!=42)
{
cin>>n;
cout<<n<<endl;
if (n==42)
{
x+=1;
}
else
{
x=0;
cin>>n;
if (n==42)
{
cout<<n<<endl;
x+=1;
}
}
}
if (x==3)
{
return 0;
}
}
return 0;
}
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