THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
You are to write a program whose output is exactly the line above.
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
The input consists of a number of text lines, terminated by end-of-file. For each line of the input that contains the string "problem", your program should print the word "no" alone on a line. For each line of the input that does not contain the string "problem", your program should print the word "yes" alone on a line. Note that the string "problem" does not need to be separated from other alphabetic text by whitespace or other delimiters; any occurrence of the string will do.
As with all questions, the input sequence is presented on the standard input stream (stdin); the output should be sent to the standard output stream (stdout).
This warm-up problem is easy, but the contest problems will be much harder.
no no yes