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#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

#define FIVE_PLUS_BUG(n) n + 5
#define FIVE_PLUS(n) (n + 5)
#define PRINT_INT(n)  printf("%s == %d\n", #n, n)

int main(int argc, char* argv[]) {
    // expect 9
    PRINT_INT(FIVE_PLUS(4));    
    // expect 18
    PRINT_INT(2 * FIVE_PLUS_BUG(4));    
    PRINT_INT(2 * FIVE_PLUS(4));    
    return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */

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