#include<stdio.h> 

void mystrconv(char *string){
        int n = 0;
        printf("Uppercase string:");
        while(string[n] != '\0'){
		//printf("%c",string[n]-32);
		printf("%c",string[n]-('a'-'A'));
		n++;
	}
        printf("\n");
}

int main(void){
	char string[100];
	printf("Input a lowercase string:");
	scanf("%s",string);
	mystrconv(string);
	return 0;
}