XYZ

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#pragma warning(disable:4996)

int main()
{
    int sum = 0, sum2=0, sum3=0;
    printf("A = ");
    int array[1024];
    int length = 0;
    char buffer[1024];
    char *aux;
    fgets(buffer, 1023, stdin);
    aux = strtok(buffer, ",");
    while (aux)
    {
        array[length] = atoi(aux);
        length++;
        aux = strtok(NULL, ",");
    }
    for (int i = 0; i < length; i++)
    {
        sum = sum + (int) array[i];
    }
    printf("\n", sum);
    printf("B = ");
    int array2[1024];
    int length2 = 0;
    char buffer2[1024];
    char *aux2;
    fgets(buffer2, 1023, stdin);
    aux2 = strtok(buffer2, ",");
    while (aux2)
    {
        array2[length2] = atoi(aux2);
        length2++;
        aux2 = strtok(NULL, ",");
    }
    for (int j = 0; j < length2; j++)
    {
        sum2 = sum2 + (int)array2[j];
    }
    printf("\na = %d\n", sum);
    printf("\nb = %d\n", sum2);
    printf("\n\n");
    printf("   %d\n", sum);
    printf("+   %d\n", sum2);
    sum3 = sum + sum2;
    printf("-----\n");
    printf("   %d\n", sum3);
    system("pause");
}