Help me in solving LBCP02B problem

My issue

My code

// Update the '_' in the code below to solve this problem

#include <stdio.h>

int main() 
{
    int X = 3;
    int Y = 4;
    int Z = 12;
    printf("The animal on the farm is _\n");

    X = 3;
    Y = 5;
    Z = 13;
    printf("The animal on the farm is _\n");

    X = 3;
    Y = 5;
    Z = 10;
    printf("The animal on the farm is_\n");

    X = 3;
    Y = 5;
    Z = 9;
    printf("The animal on the farm is _\n");

    return 0;
}

Learning course: C for problem solving - 1
Problem Link: CodeChef: Practical coding for everyone