// Life, the Universe, and Everything
// Sample code to perform I/O:

process.stdin.resume();
process.stdin.setEncoding("utf-8");
var stdin_input = "";

process.stdin.on("data", function (input) {
    stdin_input += input;                               // Reading input from STDIN
});

process.stdin.on("end", function () {
   main(stdin_input);
});

function main(input) {
    //process.stdout.write("Hi, " + input + ".\n");       // Writing output to STDOUT
var data= input.toString().split("\n");
var arr = data.map(item => Number(item));

const flag = true;
var i = 0;
while (flag)  {
    
    if (arr[i]==42) {
        break;
    } else console.log(arr[i]);
    i++; 
}   

}

// Warning: Printing unwanted or ill-formatted data to output will cause the test cases to fail



// Write your code here
// Sample code to perform I/O:
//Enter your code here