BEGIN {

	printf "Initially, PROCINFO[\"FS\"] = %s\n", PROCINFO["FS"]

	FIELDWIDTHS = "3 4 5 6"

	printf "After assign to FIELDWIDTHS, PROCINFO[\"FS\"] = %s\n", PROCINFO["FS"]

	FS = FS

	printf "After assign to FS, PROCINFO[\"FS\"] = %s\n", PROCINFO["FS"]

}