/*‘«‚µŽZ¥ˆø‚«ŽZŠÖ�”*/
function Addition( a , b ){
var A=a;
var B=b;
var Ae="";
var Be="";
var Ad="";
var Bd="";
var Math_sign="";
var Mode="";
var dsin="";
var dsin2="";

	/* A,B‚ª“¯•„�† */
	if((A.charAt(0)!="-"&&B.charAt(0)!="-")||(A.charAt(0)=="-"&&B.charAt(0)=="-")){
	
		if(A.charAt(0)!="-"&&B.charAt(0)!="-"){Math_sign="";}else{Math_sign="-";}//ŒvŽZŒ‹‰Ê‚ª�³‚©•‰‚©
		if(A.charAt(0)=="-"){Ad=A.substr(1,A.length-1);Bd=B.substr(1,B.length-1);}else{Ad=A;Bd=B;}//-�œ‹Ž‚µAd,Bd‚É‘ã“ü
		if(Ad.length > Bd.length){Ae=Ad;Be=Bd;}
		if(Ad.length < Bd.length){Ae=Bd;Be=Ad;}
		if(Ad.length==Bd.length){Ae="0"+Ad;Be=Bd;}
		Mode="+";
	}//A&B +or-
	
	/* A,B‚ªˆÙ•„�† */
	else{
		if(B.charAt(0)=="-"){dsin1="";dsin2="-";}else{dsin1="-";dsin2="";}//•„�†�Ý’è
		if(A.charAt(0)=="-"){Ad=A.substr(1,A.length-1);Bd=B;}else{Bd=B.substr(1,B.length-1);Ad=A;}//•„�†�í�œ
		if(Ad.length > Bd.length){Math_sign=dsin1;Ae=Ad;Be=Bd;}
		if(Ad.length < Bd.length){Math_sign=dsin2;Ae=Bd;Be=Ad;}
		if(Ad.length==Bd.length){
			for(i=0;i<Ad.length;i++){
				if(eval(Ad.charAt(i)) < eval(Bd.charAt(i))){Math_sign=dsin2;Ae="0"+Bd;Be=Ad;break;}
				if(eval(Ad.charAt(i)) > eval(Bd.charAt(i))){Math_sign=dsin1;Ae="0"+Ad;Be=Bd;break;}
				if(i==(Ad.length-1)){Math_sign="";Ae="00";Be="0";break;}
			}//for
		}//if
		Mode="-";
	
	}//else


// ‰‰ŽZŽ®-----------------------------------------

	var upup=0;//ŒJ‚è�オ‚è
	var Ce="";
	var Cd="";
	var C=Math_sign;
	var X=0;
	var upup=0;
	
	if(Mode=="+"){
		for(i=1 ; i<=Ae.length ; i++){
			if(i>Be.length){Bt=0;}else{Bt=eval(Be.charAt(Be.length-i));}
			X=upup+eval(Ae.charAt(Ae.length-i))+Bt;
			if(String(X).length==2){upup=1;Ce+=String(eval(X)-10);}else{upup=0;Ce+=String(X);}
		}//for
	}//if
	else{
		for(i=1 ; i<=Ae.length ; i++){
			if(i>Be.length){Bt=0;}else{Bt=eval(Be.charAt(Be.length-i));}
			X=eval(Ae.charAt(Ae.length-i))-Bt-upup;
			if(String(X).length==3){Ce+=String(10+eval(X));upup=1;}
			if(String(X).length==2){Ce+=String(10+eval(X));upup=1;}
			if(String(X).length==1){Ce+=String(X);upup=0;}
		}//for
	}//if
	Ce+=upup;
	
	for(j=1;j<=Ce.length;j++){
		Cd+=Ce.charAt(Ce.length-j);
	}
	z=1;
	while(z==1){
		if(Cd.charAt(0)=="0"){Cd=Cd.substr(1,Cd.length-1);}else{break;}
	}	
	
	
	
	if(Cd==""){Cd="0";}
	C+=Cd;

upup=0;
return C;
}










/*Š|‚¯ŽZ*/
function Multiplication( a , b ){

var A=a;
var B=b;
var C="0";
var PLUS="";
var EX="";

if(A.charAt(0)=="-" && B.charAt(0)=="-"){PLUS="";A=A.substr(1,A.length-1);B=B.substr(1,B.length-1);}
if(A.charAt(0)!="-" && B.charAt(0)=="-"){PLUS="-";B=B.substr(1,B.length-1);}
if(A.charAt(0)=="-" && B.charAt(0)!="-"){PLUS="-";A=A.substr(1,A.length-1);}


for(ip=0 ; ip<A.length ; ip++){
var X = A.charAt(ip);
var ZeroX = "";
	for(jp=0;jp<(A.length-ip-1);jp++){ZeroX+="0";}

for(kp=0 ; kp<B.length ; kp++){
var Y = B.charAt(kp);
var ZeroY = "";
	for(lp=0;lp<(B.length-kp-1);lp++){ZeroY+="0";}
var XY = (eval(X)*eval(Y))+ZeroX+ZeroY;//alert(X+ZeroX+"*"+Y+ZeroY+"="+XY);
C = Plus_Minus( C , XY );
}//for02

}//for01

z=1;
while(z==1){
	if(C.charAt(0)=="0"){C=C.substr(1,C.length-1);}else{break;}

}
EX=PLUS+C;
return EX;
}