Uri - Beecrowd | 1007 | Difference

 | 1007

Difference

Adapted by Neilor Tonin, URI  Brazil

Read four integer values named A, B, C and D. Calculate and print the difference of product A and B by the product of C and D (A * B - C * D).

Input

The input file contains 4 integer values.

Output

Print DIFERENCA (DIFFERENCE in Portuguese) with all the capital letters, according to the following example, with a blank space before and after the equal signal.

Input Samples	Output Samples
5 6 7 8	DIFERENCA = -26

0 0 7 8

DIFERENCA = -56

5 6 -7 8

DIFERENCA = 86

N.B.: It's better if you solve this by your own. Thank you!

  URI - BEECROWD Online Judge 1007 Solve  in C :                                          

//Solved by Intesar
#include <stdio.h>
int main() {
    int a,b,c,d;
    scanf("%d%d%d%d",&a,&b,&c,&d);
    printf("DIFERENCA = %d\n",a*b-c*d);
    return 0;
}