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#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
int a,b,c,d;
a = 0;
b = 1;
c = 2;
d = 3;
a = b = c = d = 4;
printf ("a=%d b=%d c=%d d=%d\n", a, b, c, d);
return EXIT_SUCCESS;
}