input_text = "HelloWorld"
output_text = ""
 
from_map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
to_map   = "NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm"
 
for character in input_text:
 
  search_index = 0
 
  while character != from_map[search_index]:
    search_index = search_index + 1
 
  output_text = output_text + to_map[search_index]
 
print(output_text)