{
Name: OANA-LIA BALAN
School Name: "Dr. I. Mesota" National College; Romania
School Code: 7156
Contest: #1
Division: Senior 3
}

program acsl_post;
uses crt;
var f:text;
    ok:boolean;
    c,p,z,l,h,t,ss:real;sz,fz,s:string[6];
    test,er:integer;

function zone(s:string):integer;
begin
val(s,ss,er);
if (ss>=1)and(ss<=6999) then zone:=1
  else if (ss>=7000)and(ss<=19999) then zone:=2
     else if (ss>=20000)and(ss<=35999) then zone:=3
        else if (ss>=36000)and(ss<=62999) then zone:=4
          else if (ss>=63000)and(ss<=84999) then zone:=5
              else if (ss>=85000)and(ss<=99999) then zone:=6;
end;


function regular:boolean;
begin
ok:=false;
if (l>=3.5)and(l<=4.25)and(h>=3.5)and(h<=6)and(t>=0.007)and(t<=0.016) then ok:=true;
regular:=ok;
end;

function largep:boolean;
begin
ok:=false;
if (l>=4.25)and(l<=6)and(h>=6)and(h<=11.5)and(t>=0.007)and(t<=0.016) then ok:=true;
largep:=ok;
end;

function envelope:boolean;
begin
ok:=false;
if (l>=3.5)and(l<=6.125)and(h>=5)and(h<=11.5)and(t>=0.016)and(t<=0.25) then ok:=true;
envelope:=ok;
end;

function largee:boolean;
begin
ok:=false;
if (l>=6.125)and(l<=24)and(h>=11)and(h<=18)and(t>=0.25)and(t<=0.5) then ok:=true;
largee:=ok;
end;

function package:boolean;
begin
ok:=false;
if (c<=84)and(frac(t)=0) then ok:=true;
package:=ok;
end;

function lpackage:boolean;
begin
ok:=false;
if (c>84)and(c<=130) then ok:=true;
lpackage:=ok;
end;


begin
clrscr;
assign(f,'input.txt');reset(f);
For test:=1 to 5 do begin
 write(test,'. ');
 read(f,l,h,t);readln(f,sz,fz);
 z:=abs(zone(sz)-zone(fz));
 p:=0;c:=l+2*(h+t);
 if regular then p:=0.20+0.03*z
  else if largep then p:=0.37+0.03*z
    else if envelope then p:=0.37+0.04*z
      else if largee then p:=0.60+0.05*z
        else if package then p:=2.95+0.25*z
         else if lpackage then p:=3.95+0.35*z;
 if p=0 then writeln('UNMAILABLE')
        else if (p<1)and(p>0)then writeln('.',p*100:2:0)
                             else writeln(p:2:2);
End;
readln;
close(f);
end