uses math; var i,n:longint; tbc:real; s:int64; a:array [1..1000000] of Qword; begin assign(input,'bai1.inp'); reset(input); assign(output,'bai1.out'); rewrite(output); read(n); for i:=1 to n do read(a[i]); s:=0; tbc:=0; for i:=1 to n do begin s:=s+a[i]; tbc:=tbc+a[i]; end; write(s,#32,tbc/n:10:3); close(input); close(output); end.