H,N = map(int,input().split())
H_list = []
for i in range(N-1):
    H_list.append(int(input()))
H_list.append(H)
H_list.sort()
for i in range(N-1,-1,-1):
    if H == H_list[i]:
        number = str(N-i)
        break
if number[-1] == "1":
    print(number,"st",sep = "")
elif number[-1] == "2":
    print(number,"nd",sep = "")
elif number[-1] == "3":
    print(number,"rd",sep = "")
else:
    print(number,"th",sep = "")