can anyone tell me what's wrong in this code??

Question

iam taking input in a matrix.
a=[]
for i in range(0,2):
for j in range(0,2):
x=int(input())
a[i][j]=x
print(a)
print("elements are : ")
for i in range(0,2):
for j in range(0,2):
print(a[i][j])
print("\n")

Answer 1

first, don't make 0 explicit in the range function, it is ALWAYS assumed when only one argument is passed.
Then, I don't really know, actually. I don't see anything wrong at first sight.
What, specifically, is your problem with the code ?