n,m,k=map(int,input().split())
ab=[input().split() for _ in range(m)]
op=ab[0].pop(0)
a,b=[int(i) for i in ab.pop(0)],[int(i[0]) for i in ab]
if op=='+':
    print((sum(a)*n+sum(b)*m)%k)
else:
    print(sum(a)*sum(b)%k)