1007 Difference

URI Online Judge | 1007

Difference

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

Solution:

#include<stdio.h>
int main()
{
int a,b,c,d,difference;

scanf("%d %d %d %d",&a,&b,&c,&d);

difference=((a*b)-(c*d));

printf("DIFERENCA = %d\n",difference);

return 0;


}