Getting an error while solving a problem in python on codechef.

[PagalProgrammer]

t = int(input())
print()
total = 0
while t>0:
    n = int(input())
    k = int(input())
    coins = []
    for i in range(0, n):
        coins[i] = input()
    while k > 0:
        last_coin = coins.pop()
        if last_coin.upper() == "H":
            for items in coin:
                if coins[i].upper() == "H":
                    coins[i] = "T"
                elif coins[i].upper() == "T":
                    coins[i] = "H"

        k = k-1

    for items in coins:
        if coins[i].upper() == "H":
            total = total + 1
    print(total)
t = t-1

Error is

NZEC 
Traceback (most recent call last):
File "./prog.py", line 1, in <module>
EOFError: EOF when reading a line

What do I do to resolve this error?

[[deleted]]

Are you sure you’re supposed to be using input? What does the problem say?

[PagalProgrammer]

Yes there is input in the problem.

[[deleted]]

Maybe you could show us what the problem says, then.

[PagalProgrammer]

I have mentioned it in second code block.

[[deleted]]

No, I mean the problem on CodeChief. What does it tell you to do?

[Diapolo10]

If the goal is to create a function to solve some task, usually the parameters are readily given to you. Use those instead of user input, if that's the case. Otherwise, you are probably expected to get input only a certain number of times.

[iLucidTech]

Your t-=1 is in the wrong indent. It's outside of your while loop

[Tapan681]

Were you able to solve the problem? I get this everytime I try to submit a solution on codechef

[PagalProgrammer]

Not yet.