const getGets = (n1) => {
	let inde0 = 0;

	return () => {
			const toReturn = n1[inde0];
			inde0 ++;
			return toReturn;
	};
};
// this is the test
const test = [
'42 142',
];

const gets = this.gets || getGets(test);
const print = this.print || console.log;

let input = gets().split(' ');

let arr = [];

let counter = 0;

let A = +input[0];
let B = +input[1];

for (i = A; i <= B; i++) {
    arr.push(i);
}

for (i = 0; i < arr.length; i++) {

	function checkDivisibility(n, digit)
	{

		return (digit != 0 && n % digit == 0);
	}


	function allDigitsDivide(n)
	{
		let temp = n;
		while (temp > 0) {


			let digit = n % 10;

			if ((checkDivisibility(n, digit)) == false)
				return false;

			temp /= 10;
		}
		return true;
	}

	if (allDigitsDivide(arr[i]) == true ){
		counter++;
	} else {
		continue;
	}
}
	print(counter);