x,n=[int(i) for i in input().split()]
a=[int(i) for i in input().split()]
sum=0
dp=[-1]*100000001

def p(x,n):
    if dp[n]!=-1: return dp[n]
    if n<2:
        dp[n]=(x**n)
        return dp[n]
    if n%2!=0:
        dp[n]=(p(x,n-1)*x)
        return dp[n]
    if n%2==0:
        dp[n]=(p(x,int(n/2))**2)
        return dp[n]

for i in range(n):
    sum+=p(x,a[i])
print(sum%100000003)