#include <bits/stdc++.h>   using namespace std;   int main() {     int x, y, a, b, c, num = 0;     scanf( %d%d , &x, &y);     a = b = c = y;     while (a < x || b < x || c < x) {       if (a <= b && a <= c)         a = b + c - 1;       else if (b <= a && b <= c)         b = a + c - 1;       else         c = a + b - 1;       num++;     }     printf( %d , num);   }   