Question
What are the missing numbers?
1703, 1713, (a)         , 1733, (b)         , 1753
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

What are the missing numbers?
1703, 1713, (a)         , 1733, (b)         , 1753