a = {
    1:"A",
    2:"b"
}
print(a)
a[3] = 'b'
print(a)
7c39aef15d37bb99f47437cec48962429b34e2ab
<mask token>

<mask token>
print(a)
<mask token>
print(a)

a = {(1): 'A', (2): 'b'}
print(a)
a[3] = 'b'
print(a)

a = {
    1:"A",
    2:"b"
}
print(a)
a[3] = 'b'
print(a)