How to use puts(),gets() built in functions in C programming!

 #include <stdio.h>

#include <stdlib.h>

#include <ctype.h>

#include <string.h>

#include <math.h>

int main()

{

    char catsName [50];

    char catsFood[25];

    char sentence [75];

    puts("Whats the cats dumb name ?");

    gets(catsName);

    puts("What does he eat?");

    gets(catsFood);

    strcat(sentence,catsName);

    strcat(sentence," loves to eat " );

    strcat(sentence,catsFood);

    puts(sentence);

    return 0;

}