#include <stdio.h>

typedef int (*pFunc)(int, int);
typedef void (*pFunc2)();
int CallBack(pFunc Func) {
    return Func(5, 5);
}
int main() {
    auto q = [](){};
    pFunc2 p = q;
    int a = CallBack(q);
    int b = CallBack([](int a, int b)->int {a += 2; b += 3; return a + b; });
    printf("a= %d b=%d\n", a, b);
}