Need help simplifying this.

Question

int acn =AccountNumber(); string acn1=DoubleToStr(acn,0); int acn2=StringLen(acn1); acn1=StringSubstr(acn1,MathMax(acn2-5,0),MathMin(5,acn2)); if(!kadaluarsa())return(0); if(StrToDouble(Pasword)!=StrToInteger(acn1)*9-1991){Alert("WRONG ACCOUNT" );return(0) ;}

Answer 1

int acn =AccountNumber();
string acn1=DoubleToStr(acn,0);
int acn2=StringLen(acn1); acn1=StringSubstr(acn1,MathMax(acn2-5,0),MathMin(5,acn2));
if(!kadaluarsa())return(0); if(StrToDouble(Pasword)!=StrToInteger(acn1)*9-1991){Alert("WRONG ACCOUNT" );
return(0) ;
}