Wrong Answer in HALF OF HALF

#This ismy code working perfectly and giving the right answer but still spoj is not accepting it ! please/
help me with this as soon as possible ! thanks in advance
lis=[]
temp=[]
n=int(input())
if(n>=1 and n<=100):
while(n!=0):
b=input()
if (int(len(b))%2==0 and int(len(b))>=1 and int(len(b))<=100):
lis.append(b)
n=n-1
else:
break
else:
pass

for i in range(len(lis)):
temp=list(lis[i])
for j in range(int(len(temp))//2):
if(j%2==0):
print(temp[j],end="")
else:
j=j+1
print("\n",end="")
del temp[:]