import java.util.Scanner;
import java.math.BigDecimal;
import java.math.BigInteger;
class Main{
public static void main(String[] args){
Scanner cin = new Scanner(System.in);
BigInteger a, b;
String s1 = "a + b = ", s2 = "a - b = ", s3 = "a * b = ", s4 = "a / b = ", s5 = "a % b = ";
a = cin.nextBigInteger();
b = cin.nextBigInteger();
// 加法
System.out.println(s1 + a.add(b));
// 减法
System.out.println(s2 + a.subtract(b));
// 乘法
System.out.println(s3 + a.multiply(b));
// 除法
System.out.println(s4 + a.divide(b));
// 求余
System.out.println(s5 + a.mod(b));
}
}
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