Not able to submit , even tho answer is correct

general
, ,
#1

guys the problem is simple take t no of cases and taking two elements a and b and find the reminder , i did two ways nothing is working
T = int(input())
if T < 1000:
for i in range(T):
ans = 0
a,b = map(float,input().split(" "))
if a < 10000 and b < 10000:
ans = a % b
print(ans)

what is the mistake , i am not able to understand

#2

please share the link for question

#3

firstly, the topic says not able to submit
Is it literally that or do you mean you got WA?

Secondly, format your code using three backticks (```) like this

T = int(input())
blah blah
    indent (makes code easier to read)

Thirdly, you do NOT need to check for constraints in your code, so your if conditions might be the mistake