#include <stdio.h>


int main()
{
	int i;
	char ch,lowest='z';
	printf("enter the key 10times.\n");


	for(i=0;i<10;i++)
	{
		ch=getchar();
		if(ch<lowest)	lowest=ch;

	}

	printf("the lowest char is %c",lowest);



	return 0;

}