D. Missing Characters
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
  • Mr. Soltan : We can ask people to print the concatenation of the answers to the problems $$$B, A, D$$$
  • Mr. Shekarchi : What if we do this with some words of the statements of the tasks $$$B, A$$$ and $$$D$$$?
  • Mr. Pupak : eah, this is better 😈
Input

In the first line of input, you'll be given the only string "BAD problem".

Output

Print the answer.

It's guaranteed that the answer does not depend on the input and it is an unique string.