function Main(input) {
  input = input.split(" ");
  var output = 0;
  if (input[0] * input[1] < input[2]) {
    output = input[0] * input[1];
  } else {
    output = input[2];
  }
  console.log(output);
}
 
Main(require("fs").readFileSync("/dev/stdin", "utf8"));