#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

void parseH(char *p);
void parseL(char *p);

int main(int argc, char *argv[])
{

    // Start measuring time
    struct timespec begin, end;
    clock_gettime(CLOCK_REALTIME, &begin);

    //



    char c[] = "qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890qwertyuiopasdfghjkllzxcvbnm123456789mnbvcxzlkjhgfdsapoiuytrewq1234567890";

    parseH(c);
    parseL(c);
    //printf("%s\n", c);

    // Stop measuring time and calculate the elapsed time
    clock_gettime(CLOCK_REALTIME, &end);
    long seconds = end.tv_sec - begin.tv_sec;
    long nanoseconds = end.tv_nsec - begin.tv_nsec;
    double elapsed = seconds + nanoseconds * 1e-9;

    printf("Time measured: %.10f seconds.\n", elapsed);
    //


    return 0;
}

void parseH(char *p)
{



    char *t ;
    t=p;
    while(*t!=0){
        if(*t>96 && *t<123){
            *t=*t-32;
        }
        t++;
    }

}

void parseL(char *p)
{

    char *t ;
    t=p;
    while(*t!=0){
        if(*t>64 && *t<91){
            *t=*t+32;
        }
        t++;
    }

}