from time import clock
import sys
def anding(temp1,temp2):
    len1=len(temp1)
    len2=len(temp2)
    if(len1>len2):
        i=len1-len2
        j=len1-1
        a=0
        b=i
    else:
        i=len2-len1
        j=len2-1
        a=i
        b=0
    reslt=""
    for k in range (i,j+1,1):
        if temp1[k-a]=='1' and temp2[k-b]=='1':
            reslt=reslt+'1'
        else:
            reslt=reslt+'0'
    for k in range(1,i+1):
        reslt='0'+reslt
    total=sys.getsizeof(len1)+sys.getsizeof(len2)+sys.getsizeof(a)+sys.getsizeof(b)+sys.getsizeof(i)+sys.getsizeof(j)+sys.getsizeof(reslt)
    return reslt,len2,total

f=open('in7_9.txt','r+')
f1=open('out_29_7_9.txt','w')
m,n=f.readline().split(",")
temp1=[]
temp2=[]
start=clock()
for i in m:
    temp1.append(i)
for i in n:
    temp2.append(i)
reslt,adds,total=anding(temp1,temp2)
ela=start-clock()


f1.write(reslt+'\n'+'no of additions : '+str(adds)+'\n'+'time taken : '+str(ela)+'\n'+'memory used : '+str(total))
f.close()
f1.close()