Nzec for antiblot system

[qwerty_sof]

why do i always encounter an nzec in most python codes ....my code for the antiblot system is :

i=0
t=input("")
print ""
while i<t:
    try: tr=raw_input() 
    except EOFError: break
    mylist=tr.split()
    j=0
    while j<5:
        if mylist[j].isdigit()==0:
            break
        j=j+2
    if j==0:
        mylist[0]=int(mylist[4])-int(mylist[2])
    if j==2:
        mylist[2]=int(mylist[4])-int(mylist[0])
    if j==4:
        mylist[4]=int(mylist[0])+int(mylist[2])
    print mylist[0]," ",mylist[1]," ",mylist[2]," ",mylist[3]," ",mylist[4]
    i=i+1
    if i!=t:
        print ""

[izekia]

read the input description carefully:

i=0
t=input("")
print ""
while i<t:
	raw_input()
	tr=raw_input()
	mylist=tr.split()
	j=0
	while j<5:
		if mylist[j].isdigit()==0:
			break
		j=j+2
	if j==0:
		mylist[0]=int(mylist[4])-int(mylist[2])
	if j==2:
		mylist[2]=int(mylist[4])-int(mylist[0])
	if j==4:
		mylist[4]=int(mylist[0])+int(mylist[2])
	print mylist[0]," ",mylist[1]," ",mylist[2]," ",mylist[3]," ",mylist[4]
	i=i+1
	if i!=t:
		print ""

[izekia]

and now feel the difference

import gc
gc.disable()
import sys
data = sys.stdin.read().split()
for i in range(1, len(data), 5):
	if not data[i].isdigit():
		data[i] = str(int(data[i+4]) - int(data[i+2]))
	elif not data[i+2].isdigit():
		data[i+2] = str(int(data[i+4]) - int(data[i]))
	else:
		data[i+4] = str(int(data[i]) + int(data[i+2]))
	print ' '.join(data[i:i+5])