gistfile1.py

#!/usr/bin/env python
m = ['RIO','ASR','IVE','NAZ','ALI','REF','TUR']
m.reverse()
r,c,R,C = (2,0,len(m),len(m[0]))
moves = [(-1,0),(0,1),(0,-1),(1,0)]
mark = [[0 for j in xrange(C)] for i in xrange(R)]
msg = []
while mark[r][c] < 5:
  mark[r][c] = 1
  msg.append(m[r][c])
  for move in moves:
    mark[r][c] += 1
    rr,cc = (r+move[0], c+move[1])
    if rr < 0 or rr >= R or cc < 0 or cc >= C or mark[rr][cc]: continue
    r,c = (rr,cc)
    break
print "".join(msg[0:5]), "".join(msg[5:10]), "".join(msg[10:])