import sys

infile = open(sys.argv[1] , 'r')
outfile = open(sys.argv[2] , 'w')
ii = 1

for line in infile:
    words = line.split()
    for ww in words:
        print(ii, ww, file=outfile, sep=': ')
        ii = ii + 1

infile.close()
outfile.close()