could somebody explain to me how this has no out put

Question

if 15 == 30:
print ("number is 30")
if 15 > 16:
print ("number is greater than 16")
if 15 == 15:
print ("number is 15")

print ("program ended")

Answer 1

Well, it has some output.
Namely "program ended".

Nothing else is printed, because the first condition 15==30 is wrong. Therefore the if-block is not entered, neither are the nested ifs
If there would be no indent (no nested, but separate ifs), it would also print "number is 15"

Answer 2

thanks heaps but worked that out right after i posted that lol its blindingly obvious to me now