n = int(input())
if 0 < n < 8:
if n == 1:
print('Monday')
elif n == 2:
print('Tuesday')
elif n == 3:
print('Wednesday')
elif n == 4:
print('Thursday')
elif n == 5:
print('Friday')
elif n == 6:
print('Saturday')
else:
print('Sunday')
else:
print('no')
