Set n Chars

#include<stdio.h>
#include<string.h>
int main() 
{
    char s[10], ch;
    int n;
    puts("Enter string1:");
    gets(s);
    puts("Enter the character:");
    scanf("%c",&ch);
    puts("Enter the number of characters to set:");
    scanf("%d",&n);
    puts("string before setting");
    puts(s);
    strnset(s,ch,n);
    puts("string after setting");
    puts(s);
    return 0;
}

Enter string1:
Hello
Enter the character:
a
Enter the number of characters to set:
3
string before setting
Hello
string after setting
aaalo