#include <stdio.h>
#include <stdlib.h>
 
#define MAX_LEN 20
 
int main() {
    char text[][MAX_LEN] = {"hi","bye","kuku","Shalom"};
    int lines = sizeof(text)/sizeof(text[0]);
    char* ptr ;
 
    for(ptr = &text[0][0] ; ptr < &text[0][0]+(lines*MAX_LEN) ; ptr+=MAX_LEN)
    {
        if(*ptr >= 'a' && *ptr<= 'z')
            *ptr-= ('a' - 'A');
    }
    for(ptr = &text[0][0] ; ptr < &text[0][0]+(lines*MAX_LEN) ; ptr+=MAX_LEN)
    {
        puts(ptr);
 
    }
    return 0;
}

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