Dice roll game that generates random number
First, get rid of the arrays RandomNum1 and RandomNum2.
You never use the data you store in them, but doing the storing might lead to out-of-bounds-accesses, as you fail to sanitize the user-input.
Only assume well-formedness of input which is under your control. Test whether scanf succeeds, and whether the result you get is valid.
Try to unify and simplify your conditional code.
Do you know that two string-literals only separated by white-space (including newlines) are fused?
Try to keep to the same style for all your names, I guess variable-names should all be lower pascal-case.
Adding a single whitespace around all binary operators, and after a comma, helps readability.