#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();
char wbuf[1<<25];

#define rd_skip() while(*rp++>=48)
#define rd(v) long v=0;{long _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}
#define rd_ul(v) unsigned long v=0;{long _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}
#define WTHI(v) {long _z=v,_n=0,_d=0;while(++_n,_d=_d<<8|0x30|_z%10,_z/=10);*(long*)wp=_d;wp+=_n;}
#define WTLO(v) {long _z=v,_n=8,_d=0;while(_d=_d<<8|0x30|_z%10,_z/=10,--_n);*(long*)wp=_d;wp+=8;}
#define wt(v) WTHI(v)

main(){
	char*rp=mmap(0l,1l<<25,1,2,0,0ll);
	char*wp=wbuf;

	rd(n);
	rd_skip();

	while(*rp){
		rd_ul(s);
		rd_ul(t);
		long z=0;
		if(s){
			long d;
			while(d=s+(s&-s),d<=t){
				s=d;
				++z;
			}
		}
		z+=__builtin_popcountl(t-s);
		wt(z);
		*wp++='\n';
	}
	
	write(1,wbuf,wp-wbuf);
	_exit(0);
}