H, N = map(int, input().split())

L = [H]
for _ in range(N-1):
    L += [int(input())]
L = sorted(L)[::-1]

X = str(L.index(H)+1)
Y = X[-1]

if Y == '1':
    Z = 'st'
elif Y == '2':
    Z = 'nd'
elif Y == '3':
    Z = 'rd'
else:
    Z = 'th'
print(X + Z)