import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Scanner;
public class 大数计算 {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner cin = new Scanner(System.in);
while(cin.hasNext())//相当于c语言中的scanf("%d", &n) != EOF
{
BigInteger a, b;
a = cin.nextBigInteger();
b = cin.nextBigInteger();
System.out.println(a.add(b));//大整数加法
System.out.println(a.subtract(b));//大整数减法
System.out.println(a.multiply(b));//大整数乘法
System.out.println(a.divide(b));//大整数除法,取整
System.out.println(a.remainder(b));//大整数取模
System.out.println(a.abs());//对大整数a取绝对值
int x = 0;
System.out.println(a.pow(x));//大整数a的x次幂
int y = 8;
System.out.println(a.toString(y));//返回大整数a的p进制用字符串表现的形式
System.out.println(a.toString());//返回大整数a的十进制用字符串表现的形式
//大整数之间的比较
if( a.compareTo(b) == 0 ) System.out.println("a == b"); //大整数a==b
else if( a.compareTo(b) > 0 ) System.out.println("a > b"); //大整数a>b
else if( a.compareTo(b) < 0 ) System.out.println("a < b"); //大整数a<b)
//浮点数计算
BigDecimal c, d;
c = cin.nextBigDecimal();
d = cin.nextBigDecimal();
System.out.println(c.add(d));//浮点数相加
System.out.println(c.subtract(d));//浮点数相减
System.out.println(c.multiply(d));//浮点数相乘
}
}
}