Problem	hello
User	YatHan
Submission Time	2025-06-16 14:45:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

hello.cpp: In function ‘int main()’:
hello.cpp:6:5: error: ‘cn’ was not declared in this scope; did you mean ‘yn’?
6 | cn >> a;
| ^~
| yn