Predecessor and successor of 3 are 2 and 4 and the predecessor and successor of 5 are 4 and 6
predecessor = number -1
The sum of any pair of consecutive odd numbers comes in the form of multiple of 4
1 million = 1000000
successor is the number that exceeds the other number
compare each numbers and check
The number that comes before the given number
The difference between the sum of even and the sum of the odd place must be zero.
Required sum = (x + 25) + (25 – x)
To make the smallest number only zero can be written twice.
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