t = 0.0    # t value
# read the rest of the file line by line:
while 1:
    line = ifile.readline()
    if not line: break

    yvalues = line.split()

    # skip blank lines:
    if len(yvalues) == 0: continue  

    for i in range(len(outfiles)):
        outfiles[i].write('%12g %12.5e\n' % \
                          (t, float(yvalues[i])))
    t += dt

for file in outfiles:  
    file.close()