from functools import reduce
N,M,K = map(int,input().split())
op,*B = input().split()
A = [int(input()) for i in range(N)]

ans = 0
for a in A:
    row = [eval('a' + op + 'int(b)') for b in B]
    ans += reduce(lambda a,b: (a+b)%K, row)
    ans %= K
print(ans)