fi=open("PopIII_list_0002_type5.txt",'r')
fo=open("PopIII_list_0002_type5_new.txt",'w')
import numpy as np
line=fi.readline()
fo.write(line)
i=0
line=fi.readline()
while line != "":
     mass = float(line.split()[1])
     if np.logical_or(mass>5e20,mass<1e20) :
        fo.write(str(i)+" "+line.lstrip(line.split()[0]))
        i=i+1
     line=fi.readline()