Program BTT;
Uses crt;
Var a,b,c: longint;
ca,cb,cc: extended;
Begin
Clrscr;
Write('Nhap a, b, c: '); Readln(a,b,c);
ca:=(a+b)/c;
cb:=20 div 3 + sqr(a);
cc:=10 mod 3 + sqr(a+c);
Writeln('Cau a: ',ca:0:2);
Writeln('Cau b: ',cb:0:2);
Write('Cau c: ',cc:0:2);
Readln
End.