#include <stdio.h>  

#define SIZE 26 

int main( void )  
{  
    char lcase[SIZE];  
    int i;  

    for (i = 0; i < SIZE; i++)  
        lcase[i] = 'a' + i;  
    for (i = 0; i < SIZE; i++)  
        printf("%c", lcase[i]);  
    printf("\n");          
    return 0;  
}