program slatkisi;
label x;
var a,b,c,d,e,f,g,h,i,j,k:longint;

begin
readln (a);
readln (b);

c:=a div 100;
d:=a mod 100;
e:=d div 10;
f:=d mod 10;
g:=10-f;
h:=a+g;
i:=a-f;
j:=100-d;
k:=a+j;
if (a>100) and (a<999) and (b=1) and (f=5) or (f>5) then writeln (h);
if (a>100) and (a<999) and (b=1) and (f<5) then
begin
writeln (i); goto x;
end;
if (a>100) and (a<999) and (b=2) and (d=50) or (d>50) then writeln (k);
x:

readln;
end.