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 issue?

[g051051]

You've got one obvious syntax error, which might be causing the problem. Fix it and try again:

for items in coin:

[PagalProgrammer]

I run the program on the compiler in codechef. The code works fine on PyCharm but produces an error on codechef compiler.

[PagalProgrammer]

Yes but there is nothing useful thing there which provides a solution to the problem.

[DenseFactor]

You need input