class Solution {
public String solution(String a, String b) {
String answer = "";
return answer;
}
}
import java.math.*;
class Solution {
public String solution(String a, String b) {
BigInteger numA = new BigInteger(a);
BigInteger numB = new BigInteger(b);
BigInteger sum = numA.add(numB);
return sum.toString();
}
}
BigInteger