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)
Rank = str(N-list.index(Nao))

if (N-list.index(Nao)) % 10 == 1:
    print(Rank + "st")
    
elif (N-list.index(Nao)) % 10==2:
    print(Rank + "nd")
    
elif (N-list.index(Nao)) % 10==3:
    print(Rank + "rd")
    
else:
   
    print( Rank + "th")