## Sheafs, stalks

Consider the sheaf F:= (ZZ/ 17ZZ)^ (ZZ is the set of the integer numbers) on the Spec(ZZ). Compute the stalks F_p for p in Spec(ZZ).

Is someone able to solve this problem?

Thanks

Another question: Find a sheaf F on Spec(ZZ) such that F_(17)=0 but F_p not 0 for all p not equal to (17)

THanks a lot