Var
N,A:integer;
Begin
Write('N = ');Read(N);
A:=0;
While N>0 do
Begin
if (N mod 10) > A then A:= N mod 10;
N:=N div 10;
End;
Write(A)
End.
Var
N,A,B:integer;
C:boolean;
Begin
Write('N = ');Read(N);
A:=-1;
B:=-2;
C:=false;
While N>0 do
Begin
if A=B then C:=true;
if N>0 then
Begin
A:=N mod 10;
N:=N div 10;
End;
if A=B then C:=true;
if N>0 then
Begin
B:=N mod 10;
N:=N div 10;
End;
End;
if A=B then C:=true;
if C then Write('Есть')
else Write('Нет')
End.
var a,b:integer;
s:real;
begin
readln(a);
readln(b);
if (a+b>5) then s:=sqrt(a+b) else s:=sqr(a+b);
writeln(s);
end.
2)uses crt;
var a,b,c:integer;
pr:real;
begin
readln(a);
readln(b);
readln(c);
if (abs(a*b*c)>=10) then pr:=(a*b*c)/3 else pr:=(a*b*c)*(a*b*c)*(a*b*c);
writeln(pr);
end.
3)uses crt;
var a,b,sq:integer;
begin
readln(a);
readln(b);
if (a>b) then sq:=sqr(a);
if (b>a) then sq:=sqr(b);
writeln(sq);
end.
4)uses crt;
var a:integer;
begin
readln(a);
if (a<20) and (a>0) then a:=a-4 else a:=abs(a);
writeln(a);
end.