<s>
ISO/IEC	B-Algorithm
7064	I-Algorithm
is	O
a	O
standard	O
promulgated	O
by	O
the	O
International	O
Standards	O
Organization	O
(	O
ISO	O
)	O
and	O
International	O
Electrotechnical	O
Commission	O
(	O
IEC	O
)	O
that	O
defines	O
algorithms	O
for	O
calculating	O
check	B-Error_Name
digit	I-Error_Name
characters	O
.	O
</s>
