Space Separated Integers Sum In c

A single line consisting of a set of integers, each separated by space is passed as input to the program. The program must print the sum of all the integers present.

Input Format:
The first line contains the integer values (Each separated by a space)

Output Format:
The first line contains the sum of all the integers.

Boundary Conditions:
The length of the input string is between 3 to 10000
The value of the integer values will be from -99999 to 99999

Example Input/Output 1:
Input:
100 -99 98 5

Output:
104

Example Input/Output 2:
Input:
100 200 -300 500 -450 -50

Output:
0

 #include <stdlib.h>

 int main(void) 

{ char *str;

scanf("%[^\n]s",str);

 char *end = str; 

int x=0;

while(*end)

 { int n = strtol(str, &end, 10);

x+=n; 

while (*end == ',') 

{ end++; } 

str = end; 

}

printf("%d",x);

 return 0;

 }