WA for Round G problem 1

help
, ,
1

Can anyone explain to me what is going wrong in the following solution to the first problem of Round G of Google kickstart 2020?

for t in range(1,int(input())+1):
  s = input()
  l,i,ans,C = len(s),0,0,0
  while i < l:
    if s[i:i+4] == 'KICK':
      C += 1
      i += 4
    elif s[i:i+5] == 'START':
      ans += C
      i += 5
    else:
      i += 1

  print('Case #{}: {}'.format(t,ans))
2
Consider

KICKICKSTART

3

Thank you so much for the help !!