# run "ruby cipher.rb"
# It will ask for a string (use upper case letters)
# It will ask for a shift and then output the encrypted string

print "Enter a string:"
x=gets
print "Enter a shift:"
shift=Integer(gets)


y=String.new
(x.length-1).times{|i| y <<  ((x[i]-65 + shift) % 26 + 65)      } 
puts y