var readline =  require('readline');

var r = readline.createinterface({
  input:process.stdin,
  output:process.stdout
});

let input = []; 

r.on('line', function (line) {
  input = line.split(' ').map((el) => parseInt(el));
  .on('close', function () {
    console.log(input[0] / input[1] * input[2]);
    process.exit();
});