I Hate SPAM, but Some People Love It

Problem Number: 
1 317
Type of Problem: 
Single Output Problem
Problem code: 
Problem Category: 
7 Graph
Input: 
0
0
0
Problem Description Link: 
https://www.urionlinejudge.com.br/judge/en/problems/view/1317
Problem Analysis Link: 
Flag: 
0
Restrict Problem Hints: 
0
Restrict Problem Inputs: 
0
Problem Id: 
1317