#include<stdio.h>

int main()
{
    int tmp = 0;
    char bigNum[] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0'};
    int value = 0;
    char bigNum2[] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '8', '0'};
    int value2 = 0;

    for(int i = 0; i < sizeof(bigNum); i++)
        if(bigNum[i] >= '0' && bigNum[i] <= '9')
            tmp += bigNum[i]-'0';

    while(tmp > 0)
    {
        value += tmp % 10;
        value *= 10;
        tmp /= 10;
    }
    printf("%d\n", value);

    for(int i = 0; i < sizeof(bigNum2); i++)
        if(bigNum2[i] >= '0' && bigNum2[i] <= '9')\
        {
            tmp += bigNum2[i]-'0';
        }

    while(tmp > 0)
    {
        value2 += tmp % 10;
        value2 *= 10;
        tmp /= 10;
    }
    printf("%d\n", value2);

    printf("Value: %d\n", value+value2);
    int difference = value - value2;
    if(difference < 0) difference *= -1;
    printf("Difference: %d", difference);
}