In [2]:
print(123)
123
In [3]:
test
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
Cell In[3], line 1
----> 1 test

NameError: name 'test' is not defined
In [2]:
print(123)
123
In [1]:
print(123)
123
In [1]:
print(123)
123
In [1]:
print(123)
123
In [1]:
print(123)
123
In [ ]: