#yuki987
n,m,k=map(int,raw_input().split())
op=raw_input().split()
a=[]
for i in range(n):
 a.append(int(raw_input()))
l=[]
for i in range(n):
 for j in range(1,len(op)):
  if op[0]=='+':
   l.append(int(op[j])+a[i])
  else:
   l.append(int(op[j])*a[i])
print(sum(l)%k)