# SUN,MON,TUE,WED,THU,FRI,SAT 
s = gets.chomp

if s =="SUN"
  puts 7
elsif s == "MON"
  puts 6
elsif s == "TUE"
  puts 5
elsif s == "WED"
  puts 4
elsif s == "THU"
  puts 3
elsif s == "FRI"
  puts 2
elsif s == "SAT"
  puts 1
end