Program BTT;
Uses crt;
Var m,n,i,s,d: longint;
Begin
Clrscr;
Write('Nhap m: '); Readln(m);
Write('Nhap n: '); Readln(n);
s:=0; d:=0;
For i:=m to n do
If i mod 10 = 0 then
Begin
inc(d);
s:=s+i;
End;
Writeln('Co ',d,' so chan chia het cho 5');
Write('Tong la: ',s);
Readln
End.