#include <bits/stdc++.h>
using namespace std;

inline int read()
{
	char ch=getchar();
	int x=0;
	while(!isdigit(ch))
		ch=getchar();
	while(isdigit(ch))
	{
		x=x*10+ch-'0';
		ch=getchar();
	}
	return x;
}
int n;
int main()
{
	int x,y,cnt;
	n=read();
	while(n--)
	{
		x=read(),y=read();
		cnt=0;
		while(x!=y)
		{
			if(x>y) x>>=1;
			else y>>=1;
			cnt++;
		}
		printf("%d\n",cnt);
	}
}