2731.sagews

input = """
#|#|#|##
---X----
###||###
"""

# Prepare the input from the string
north,start,south = input.strip().split('\n')
start = start.find('X')

# Setup the state variables
X = start
hits = 0
while (X >= 0) and (X < len(north)):
  print 'Robot at position:', X
  print 'To the north:', north[X]
  print 'To the south:', south[X]
  X += 1

Robot at position: 3 To the north: | To the south: | Robot at position: 4 To the north: # To the south: | Robot at position: 5 To the north: | To the south: # Robot at position: 6 To the north: # To the south: # Robot at position: 7 To the north: # To the south: #