Finding Palindrome

#include <stdio.h>
 
int solution(int n) {
    int answer = 0;
    int i;
 
    for (i = 0; n != 0; i++)
    {
        answer = answer * 10 + n % 10;
 
        n /= 10;
    }
    return answer;
}
 
int main(void)
{
    int num, num2, i, j, n, k = 1, r;
 
    scanf("%d", &num);
 
    num2 = solution(num);
 
    for (i = 0; num != num2; i++)
    {
        num = num + num2;
        num2 = solution(num);
 
        if (num < 0)
            break;
    }
 
    if (num < 0)
        printf("Overflow");
    else
        printf("%d %d", i, num);
 
}