const arg1 = +gets();
const arg2 = +gets();

function solve(x, z) {
   let isWholeNumber = true;
   let counter = 0;
   for (let i = x; i <= z; i++) {
      i = i.toString();
      for (let index = 0; index < i.length; index++) {
         let currentNumber = Number(i.charAt(index));
         if (currentNumber == 0) {
            continue;
         }
         let result = i / currentNumber;
         if (result % 1 != 0) {
            isWholeNumber = false;
            break;
         }
      }
      if (isWholeNumber) {
        counter++;
      }
      isWholeNumber = true;
   }
   print(counter);
}

solve(arg1, arg2);