function AND(a,b){
var hb=(a>0x80000000)&&(b>0x80000000);
var r=0;
if(a>0x80000000)a-=0x80000000;
if(b>0x80000000)b-=0x80000000;
r=a&b;
if(hb)
r+=0x80000000;
return r;
}
function OR(a,b){
var hb=(a>0x80000000)||(b>0x80000000);
var r=0;
if(a>0x80000000)a-=0x80000000;
if(b>0x80000000)b-=0x80000000;
r=a|b;
if(hb)
r+=0x80000000;
return r;
}
function XOR(a,b){
var hb=((a>0x80000000)&&(b<0x80000000))||((a<0x80000000)&&(b>0x80000000));
var r=0;
if(a>0x80000000)a-=0x80000000;
if(b>0x80000000)b-=0x80000000;
r=a^b;
if(hb)
r+=0x80000000;
return r;
}
function NOT(a){
var b=0x80000000;
var n=0;
while(b>=1){
if(a>=b)
	a-=b;
else
	n+=b;
b=b/2;
}
return n;
}