memset() Function

#include<stdio.h>
#include<string.h>
int main()
{
    char an[51] = "My University Name is `University Of Asia Pacific'";
    printf("Before memset() : %s\n", an);

    printf("\n");

    memset(an + 3 ,'.', 10*sizeof(char));
    printf("After memset() : %s\n",an);

    return 0;
}