var
a,i,n,a1:integer;
begin
a1:=30000;
read(n);
for i:=1 to n do begin
read(a);
if (a<a1) and (a div 10 <10) and (a div 10 >1)and (a mod 2 = 0) then a1:=a;
end;
writeln(a1);
end.
var
b,x,c:real;
i,n,a:integer;
begin
x:=0;
b:=0;
read(n);
for i:=1 to n do begin
read(a);
if (a mod 7 = 0) or (a mod 3 = 0) then b:=b+a;
if (a mod 7 =0) or (a mod 3 = 0) then x:=x+1;
end;
c:=b/x;
writeln(c);
end.
var
a,b,x,i,n:integer;
begin
x:=0;
read(n);
for i:=1 to n do begin
read(a);
if (a mod 10 <>1) and (a mod 2 = 1) then x:=x+1;
end;
writeln(x);
end.
#Ruby22
def f0(number, log)
return [number * number, "(" + log + ")^2 "]
end
def f1(number, log)
return [number - 2, log + " - 2"]
end
end_num = 79
for n in 1..5
for i in 0..2**n-1
s = ("000000000000000000000000000000" + i.to_s(2))[-n..-1]
start_num = 7
log = start_num.to_s
for k in 0..s.size-1
start_num, log = f0(start_num, log) if s[k] == "0"
start_num, log = f1(start_num, log) if s[k] == "1"
# break if start_num > end_num
end
# p [start_num, log, s, n]
if start_num == end_num then
log += " = " + end_num.to_s
p log
end
end
end