with open('input.txt', 'r') as file:
    text = file.readlines()
if 'n' in text[0] and len(text[0]) > 3:
    num = int(text[0].split()[1])
else:
    num = int(10)
if len(text) < num:
    num = len(text) - 1
for i in range(num):
    print(text[len(text) - num + i], end='')