Bit Operations using Macros

#include <stdio.h>
#include <stdint.h>

// Define bitwise macros here
#define SET_2_7(r) (((r) |= ((1 << 2) | (1 << 7))))
#define CLEAR_3(r) ((r) &= ~(1 << 3))
#define TOGGLE_5(r) ((r) ^= (1 << 5))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    SET_2_7(reg);
    CLEAR_3(reg);
    TOGGLE_5(reg);
    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}