How many times does the following python program print 'Hello'?

$a=2$

$b=3$

$c=5$

$d=3$

while $,d=d+1$

$a=a+1d$

print $(\text{'}Hello\text{'})$

$,d=d+1$

$a=a+1$

Answer:$a$

while $d$

print $(\text{'}Hello\text{'})$

$,d=d+1$

$a=a+1$

Answer: