import std.algorithm, std.conv, std.range, std.stdio, std.string;

void main()
{
  auto rd = readln.split.to!(long[]), x = rd[0], y = rd[1];
  auto c = 1;
  for (;;) {
    x *= 2;
    if (x > y) break;
    ++c;
  }
  writeln(c);
}
