swap 3 numbers a to b, b to c and c to a

#include <stdio.h>
int main() {
    int a, b, c;
    printf("Enter the value of a: ");
    scanf("%d", &a);
    printf("Enter the value of b: ");
    scanf("%d", &b);
    printf("Enter the value of c: ");
    scanf("%d", &c);
    a = a + b + c;
    b = a - (b + c);
    c = a - (b + c);
    a = a - (b + c);
    printf("After swapping in a cyclic manner:\n");
    printf("a = %d\n", a);
    printf("b = %d\n", b);
    printf("c = %d\n", c);
    return 0;
}