Problem:
Score : 100 points

Problem Statement

You are given a string S of length 3 consisting of a, b and c. Determine if S can be obtained by permuting abc.

Constraints

|S|=3

S consists of a, b and c.

Input

Input is given from Standard Input in the following format:

S

Output

If S can be obtained by permuting abc, print Yes; otherwise, print No.

Sample Input 1

bac

Sample Output 1

Yes

Swapping the first and second characters in bac results in abc.

Sample Input 2

bab

Sample Output 2

No

Sample Input 3

abc

Sample Output 3

Yes

Sample Input 4

aaa

Sample Output 4

No

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>

int main(void)
{
    int flag[3] = { 0, 0, 0 };
    flag[getchar() - 'a'] = 1;
    flag[getchar() - 'a'] = 1;
    flag[getchar() - 'a'] = 1;
    if (flag[0] && flag[1] && flag[2]) {
        printf("Yes\n");
    } else {
        printf("No\n");
    }
    return 0;
}