list = [] 
Nao,N=[int(i) for i in input().split()]
list.append(Nao)

for i in range(N-1):
    list.append(int(input()))



list.sort()
#print(list)

if list.index(Nao) == N-1:
    print("1st")
elif list.index(Nao) == N-2:
    print("2nd")
elif list.index(Nao) == N-3:
    print("3rd")
else:
    Rank = str(N-list.index(Nao))
    print( Rank + "th")