#include <stdio.h>
int main(void) {
int a[]={1,3,2,4};
int x[4];
x[0]=a[0]+a[2];
x[1]=a[0]-a[2];
x[2]=a[1]+a[3];
x[3]=a[1]-a[3];
printf("%d+%dj\t",x
[1],-x
[3]); return 0;
}
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