Indivisible

Alice thinks Bob has very weak math skills. Alice gave Bob three numbers $A, B, $ and $C$ and challenged him to find any **positive integer** $K$ **strictly less than** $100$ such that *none* of the three numbers are divisible by $K$. Help Bob find one such integer $K$. Note that there can be multiple correct values for $K$, you need to output just one. Under the given constraints, a vali