<s>
When	O
several	O
random	O
numbers	O
of	O
many	O
digits	O
are	O
added	O
,	O
the	O
statistics	O
of	O
the	O
carry	O
digits	O
bears	O
an	O
unexpected	O
connection	O
with	O
Eulerian	O
numbers	O
and	O
the	O
statistics	O
of	O
riffle	B-Algorithm
shuffle	I-Algorithm
permutations	I-Algorithm
.	O
</s>
<s>
In	O
most	O
computers	O
,	O
the	O
carry	O
from	O
the	O
most	O
significant	O
bit	O
of	O
an	O
arithmetic	O
operation	O
(	O
or	O
bit	O
shifted	O
out	O
from	O
a	O
shift	O
operation	O
)	O
is	O
placed	O
in	O
a	O
special	O
carry	O
bit	O
which	O
can	O
be	O
used	O
as	O
a	O
carry-in	O
for	O
multiple	O
precision	O
arithmetic	O
or	O
tested	O
and	O
used	O
to	O
control	O
execution	O
of	O
a	O
computer	B-Application
program	I-Application
.	O
</s>
<s>
The	O
same	O
carry	O
bit	O
is	O
also	O
generally	O
used	O
to	O
indicate	O
borrows	O
in	O
subtraction	O
,	O
though	O
the	O
bit	O
's	O
meaning	O
is	O
inverted	O
due	O
to	O
the	O
effects	O
of	O
two	B-General_Concept
's	I-General_Concept
complement	I-General_Concept
arithmetic	I-General_Concept
.	O
</s>
<s>
Normally	O
,	O
a	O
carry	O
bit	O
value	O
of	O
"	O
1	O
"	O
signifies	O
that	O
an	O
addition	O
overflowed	O
the	O
ALU	B-General_Concept
,	O
and	O
must	O
be	O
accounted	O
for	O
when	O
adding	O
data	O
words	O
of	O
lengths	O
greater	O
than	O
that	O
of	O
the	O
CPU	O
.	O
</s>
