Dr. Chaz is hosting a programming contest wrap up dinner.
Dr. Chaz has severe OCD and is very strict on rules during
dinner, specifically, he needs to be sure that everyone take
exactly $1$ piece
of chicken at his buffet, even if that will result in an
enormous amount of leftovers. This is why every year before the
dinner, Dr. Chaz would give a powerful speech: “Everyone,
one chicken per person!”
However, Dr. Chaz does not always have an idea how many
pieces of chicken he needs, he believes if there are
$N$ people at the buffet
and everyone takes exactly $1$ piece of chicken, providing
$M$ pieces of chicken will
be perfect, i.e., is enough and will have no leftovers. Help
Dr. Chaz find out whether his decision is good or not!
Input
The first line contain integers $0\leq N\leq 1\, 000$, $0\leq M\leq 1\, 000$, $N\neq M$ , the number of people at
the buffet and the number of pieces of chicken Dr. Chaz is
providing.
Output
Output a single line of the form “Dr. Chaz will have
$P$ piece[s] of chicken
left over!”, if Dr. Chaz has enough chicken and $P$ pieces of chicken will be left
over, or “Dr. Chaz needs $Q$ more piece[s] of chicken!” if Dr.
Chaz does not have enough pieces of chicken and needs
$Q$ more.
Sample Input 1 
Sample Output 1 
20 100

Dr. Chaz will have 80 pieces of chicken left over!

Sample Input 2 
Sample Output 2 
2 3

Dr. Chaz will have 1 piece of chicken left over!

Sample Input 3 
Sample Output 3 
10 1

Dr. Chaz needs 9 more pieces of chicken!
