Thread: string question

im trying to add a number like 1234567891112131415 and 1234567891234567891234556. i stored them both as string1 and string2 but i cant figure out how to get the answer.i think i need to use strtol, but i cant figure out what am i doing wrong. any help?

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

int main() {
     // variables
     char string1[512];
     char string2[512];
    
     //opening
     printf("Enter a whole number:");
     scanf_s("%s", string1);
     printf("Enter another whole number:");
     scanf_s("%s", string2);
     //adding trying to use strtol function
     long strtol(char *string1, char** string2);

    

     //results
     printf("The sum is:%s",  );
    
     //exiting
     getchar();
     getchar();
     return 0;
}