#include <stdio.h>

int main() {
    int num = 10;
    int mask = 7;

    // Turn on the 3rd and 1st bits
    num = num | (1 << 2);
    num = num | (1 << 0);

    // Turn off the 2nd bit
    num = num & ~(1 << 1);// 1101
    printf("%d turn off\n",num);

    // Check if the 3rd bit is set
    int is_set = num & (1 << 2);//imp//if we print we get the value of bit 
    printf("%d check\n",is_set);
    if (is_set) {
        printf("The 3rd bit is set %d\n", is_set);//imp
    } else {
        printf("The 3rd bit is not set\n");
    }

    // Mask out the lower 3 bits and print the result
    int result = num & mask;
    printf("The masked number is: %d\n", result);

    return 0;
}
#if 0 

a = 5 (0101 in binary)
(1 << 2) = 4 (0100 in binary)
a & (1 << 2) = 0101 & 0100 = 0100 (4 in decimal)

here a & (1 << 2) is used to check if its set or not
#endif