Question
What are the missing numbers?
1186, (a)          , 1246, 1276, (b)          , 1336
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?
1186, (a)          , 1246, 1276, (b)          , 1336