【HDOJ】1063 Exponentiation

import java.util.Scanner;
import java.math.BigDecimal;

public class Main {
public static void main(String[] args) {
Scanner cin = new Scanner(System.in);
while (cin.hasNext()) {
BigDecimal br = cin.nextBigDecimal();
int n = cin.nextInt();
String ans = br.pow(n).stripTrailingZeros().toPlainString();
int i;
for (i=0; i<ans.length(); ++i)
if (ans.charAt(i) != '0')
break;
String val =  ans.substring(i, ans.length());

System.out.println(val);
}
}
}