# Get the filepath from the command line
import sys
P= sys.argv[1]
F= sys.argv[2]
L= sys.argv[3]
B= sys.argv[4]

# ----------------------------------------------------------------
#
# Our Helper functions:
#
# ----------------------------------------------------------------

#
# Loads the file at filepath
# Returns a 2d array with the data
#
def load2dArrayFromFile(filepath):
  file = open(filepath,'r')
  contents = file.read()
  file.close()
  output = []
  S = contents.split('\n')
  for X in range(len(S)):
    output.append(S[X].split('|'))
  return output
#
# Searches the 2d array 'records' for firstname, lastname.
# Returns the index of the record or -1 if no record exists
#
def findIndex(records, firstname, lastname):
  for X in range(len(records)):
    if records[X][0] == firstname and records[X][1] == lastname:
      return X
  return -1

# Sets the birthday of the record at the given index
# Returns: nothing
def setBirthday(records, index, newBirthday):
    records[index][2] = newBirthday

# Convert the 2d array back into a string
# Return the text of the 2d array
def makeTextFrom2dArray(records):
  output = []
  for X in range(len(records)):
    outputTMP = ('|').join(records[X])
    output.append(outputTMP)
  output = ('\n').join(output)

# ----------------------------------------------------------------
#
#  Our main code body, where we call our functions.
#
# ----------------------------------------------------------------

# Load our records from the file into a 2d array
records= load2dArrayFromFile(P)

# Find out which index, if any, has the name we are hunting
indexWeAreHunting= findIndex(records, F, L)

# Set the birthday record to the one we were passed
setBirthday(records, indexWeAreHunting, B)

# Convert the records into a text string
output= makeTextFrom2dArray(records)

# Your code goes here
# write the text string out to the file
file = open(P,'w')
file.write(output)