Nested loop

Question

I do not uderstand output of this code

i,j=0,0
for i in range(0,5):
print()
for j in range(0,i+1):
print(j , i)
for y in range(0,j+1):
print(i,j,y)
for x in range(0,y+1):
print(i,j,y,x)

Answer 1

1. i dont think u must define variable i and j if uh are gonna use it in loop.
2.as far as i know print() will print blank and sends the cursor to second line
3. the more times loops run the values of variables i,j,y,x also increases.
4.it will start printing the values.
5. Where did uh got this question? >_<