# TLEしたので前半2項後半2項で分ける
# 数え上げで、前半2項は累積せず、後半2項は累積すればいいか

N, P, Q = map(int, input().split())
A = list(map(int, input().split()))
A.sort()

former_count = [[0]*P for i in range(N)]

for a in range(N-3):
    for b in range(a+1, N-2):
        calc = (pow(10, A[a], P)+pow(9, A[b], P))%P
        former_count[b][calc] += 1
        #print('a', a, 'b', b, 'calc', calc)

#for i in range(1, N):
#    for j in range(P):
#        former_count[i][j] += former_count[i-1][j]
        
#for f in former_count:
#    print(f)

latter_count = [[0]*P for i in range(N)]

for c in range(2, N-1):
    for d in range(c+1, N):
        calc = (pow(7, A[c], P)+pow(5, A[d], P))%P
        latter_count[c][calc] += 1
        #print('c', c, 'd', d, 'calc', calc)
        
for i in range(N-2, -1, -1):
    for j in range(P):
        latter_count[i][j] += latter_count[i+1][j]
        
#for l in latter_count:
#    print(l)

ans = 0
for b in range(1, N-2):
    #print(b)
    for j in range(P):
        calc = former_count[b][j]*latter_count[b+1][(Q-j)%P]
        #print('b', b, 'j', j, 'calc', calc)
        ans += calc
print(ans)