a enum data type in c

1// An example program to demonstrate working 
2// of enum in C 
3#include<stdio.h> 
4  
5enum week{Mon, Tue, Wed, Thur, Fri, Sat, Sun}; 
6  
7int main() 
8{ 
9    enum week day; 
10    day = Wed; 
11    printf("%d",day); 
12    return 0; 
13}  
14// OUTPUT
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