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| import java.util.Scanner;
public class Main {
public static void main(String[]args) {
Scanner in = new Scanner(System.in);
String[]input = in.nextLine().split("[\\s/]");
in.close();
long a1 = Integer.parseInt(input[0]);
long b1 = Integer.parseInt(input[1]);
long a2 = Integer.parseInt(input[2]);
long b2 = Integer.parseInt(input[3]);
if (b1 != 0 && b2 != 0) {
add(a1, b1, a2, b2);
minus(a1, b1, a2, b2);
mutilply(a1, b1, a2, b2);
divide(a1, b1, a2, b2);
}
}
public static void tackle(long a, long b) {
if (a == 0) {
System.out.print(0);
return;
}
boolean isMinus = a > 0 ? false : true;
if (isMinus) {
System.out.print("(-");
a = -a;
}
long gcd = getGcd(a, b);
a = a / gcd;
b = b / gcd;
if (a % b == 0) {
System.out.print(a / b);
} else if (Math.abs(a) > b) {
System.out.print(a / b + " " + (a % b) % b + "/" + b);
} else if (a == b) {
System.out.print(1);
} else {
System.out.print(a + "/" + b);
}
if (isMinus) {
System.out.print(")");
}
}
public static void divide(long a1, long b1, long a2, long b2) {
tackle(a1, b1);
System.out.print(" / ");
tackle(a2, b2);
System.out.print(" = ");
if (a2 == 0) {
System.out.print("Inf");
} else if (a2 < 0) {
tackle(-1 * a1 * b2, -1 * a2 * b1);
} else {
tackle(a1 * b2, a2 * b1);
}
}
public static void mutilply(long a1, long b1, long a2, long b2) {
tackle(a1, b1);
System.out.print(" * ");
tackle(a2, b2);
System.out.print(" = ");
tackle(a1 * a2, b1 * b2);
System.out.println();
}
public static void minus(long a1, long b1, long a2, long b2) {
tackle(a1, b1);
System.out.print(" - ");
tackle(a2, b2);
System.out.print(" = ");
tackle(a1 * b2 - a2 * b1, b1 * b2);
System.out.println();
}
public static void add(long a1, long b1, long a2, long b2) {
tackle(a1, b1);
System.out.print(" + ");
tackle(a2, b2);
System.out.print(" = ");
tackle(a1 * b2 + a2 * b1, b1 * b2);
System.out.println();
}
public static long getGcd(long a, long b) {
while (a % b != 0) {
long temp = a % b;
a = b;
b = temp;
}
return b;
}
}
|