Arduino UNO R3
IDE 1.8.19

luhn_check_stream.ino
LUHN_LIB_VERSION: 0.2.0
run I: add() per character
7	5
9	4
9	7
2	1
7	0
3	8
9	8
8	2
7	5
1	3

LUHN:	3
time:	256

run II: should have same 2nd column as run 1.
	0
7	5
79	4
799	7
7992	1
79927	0
799273	8
7992739	8
79927398	2
799273987	5
7992739871	3


run III: generateChecksum()
LUHN:	3
time:	64


done...
