print 'usage: numfiles fileprefix outfile'
import sys
numfiles = int(sys.argv[1])
fileprefix = sys.argv[2]
outfile = open(sys.argv[3], 'w')
for count in range(1, numfiles + 1):
	num = str(count)
	print num + ' ',
	sys.stdout.flush()
	num = '0' * (4 - len(num)) + num
	infile = open(fileprefix + '_' + num + '_qseq.txt')
	for line in infile:
		fields = line.split()
		seq = fields[8]
		outfile.write('>%s_%s:%s:%s:%s:%s/%s\n%s\n' % (fields[0], fields[1], fields[2],fields[3],fields[4],fields[5],fields[7], seq.replace('.','N')))
	infile.close()
outfile.close()
print