from time import clock
import sys

def perfect(From,To):
    
    global addcount
    global multicount
    global memory
    addcount=0
    multicount=0
   
    for n in range(From,To):
        
        max = int((n**0.5)) + 1
        addcount+=1
        tot = 1
        q=0
        
        for i in range (2, max):

            if ( (n % i) == 0 ):
                tot += i
                addcount+=1
                q = int(n / i)

                if q > i:
                    tot += q
                    addcount+=1

        if tot == n and tot!=1:
        
            outfile.write(str(n)+",")
    
    memory=sys.getsizeof(n)+sys.getsizeof(addcount)+sys.getsizeof(multicount)+sys.getsizeof(tot)+sys.getsizeof(q)+sys.getsizeof(max)+sys.getsizeof(i)+sys.getsizeof(From)+sys.getsizeof(To)
    
   
infile=open("in7_4.txt",'r')
From,To=infile.readline().split(',')
From = int(From)
To = int (To)

outfile=open("out_14_7_4.txt",'w')
start=clock()
perfect(From,To)

outfile.write("\n no of additions "+str(addcount))
outfile.write("\n no of multiplications "+str(multicount))
outfile.write("\n execution time "+str(clock()-start))
outfile.write("\n memory used "+str(memory)+" bytes")
print "output file generated"

infile.close()
outfile.close()