program p25485; var
y,n,s:longint;
function dg(x:longint):longint; begin
if x=n+1 then dg:=s else
dg:=dg(x+1)+70; end; begin
readln(n,s); writeln(dg(1)); end.
program p25485; var
y,n,s:longint;
function dg(x:longint):longint; begin
if x=n+1 then dg:=s else
dg:=dg(x+1)+70; end; begin
readln(n,s); writeln(dg(1)); end.
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