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 n = gets().split(' ');

let arr = [];

let result = [];

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

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

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

	let num = [...arr[i]+''].filter(Number).map(n=>parseInt(n));;
	let len = num.length;

	for(k = 0; k <= len; k++) {

		if (arr[i] % num[k] == 0 && arr[i] % num[k+1] == 0) {
			result.push(arr[i]);
		}

	}
}
uniq = [...new Set(result)];

print(uniq.length);