H, N = map(int, input().split())
heights = []
heights.append(H)
for x in range(N-1):
    heights.append(int(input()))
heights.sort()
heights.reverse()
count = 0
while H != heights[count]:
    count += 1
rank = str(count + 1)
if rank[-1]=='1':
    end = 'st'
elif rank[-1]=='2':
    end = 'nd'
elif rank[-1]=='3':
    end = 'rd'
else:
    end = 'th'

print(rank+end)