Project Assignment Evaluation

You are given a string T of length 3, where each character represents the enrollment status of a student in one of three courses (for example, M, S, or A). Two or more students can be paired to work together on a project if they are not all enrolled in the same course.

Formally, let \( T \) be a string of length 3. If the number of distinct characters in \( T \) is greater than 1, i.e. \( |\{ t : t \in T\} | > 1 \), then print Yes; otherwise, print No.

For example, if T = "MSA" then the output should be Yes, whereas for T = "MMM" the output should be No.

inputFormat

Input is provided from standard input (stdin) as a single line containing a string T of length 3.

outputFormat

Output to standard output (stdout) a single line containing either Yes or No based on whether at least one pair of students can be assigned a project together.

MSA

Yes