def locate_card(cards, query):
# Create a variable position with the value 0
position = 0
# Set up a loop for repetition
while True:
# Check if element at the current position matche the query
if cards[position] == query:
# Answer found! Return and exit..
return position
# Increment the position
position += 1
# Check if we have reached the end of the array
if position == len(cards):
# Number not found, return -1
return -1