import csv
import time
import sys
tinitial = time.time()
f = open('out_23_7_3.txt', 'a')
print ("",end="",file=f)
f.close()
tinitial = time.time()
def reversenumber(x):
    if(x>0):
        print (x%10,end="")
        reversenumber(int(x/10))
infile= open('in7_3.txt',"r")
# Read in the data
csv_reader = csv.reader(infile)
f = open('out_23_7_3.txt', 'w')
for row in csv_reader:
    a=int(row[0])
    b=int(row[1])
    while (b>=a):
        reversenumber(a)
        print(",",end=",",file=f)
        a=a+1
print(" ",file=f)
print ("No of additions:",int(int(row[1])-int(row[0])),file=f)
print ("Execution Time : ",(time.time()-tinitial)," Seconds",file=f)
print ("Memory Used: ",sys.getsizeof(int)*((int(row[1])-int(row[0]))+3),file=f)
f.close()