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#include <bits/stdc++.h>
using namespace std;
long long a,b;
int main()
{
freopen("dulieu.txt","r",stdout);
freopen("ketqua.txt","w",stdout);
cin>>a>>b;
cout<<a+b;
return 0;
}
const fi='hcn.txt';
fo='ketqua.txt';
var f1,f2:text;
a,b:array[1..100]of integer;
n:integer;
cv,dt:real;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
n:=0;
while not eof(f1) do
begin
inc(n);
readln(f1,a[n],b[n]);
end;
for i:=1 to n do
begin
cv:=(a[i]+b[i])/2;
dt:=a[i]*b[i];
writeln(f2,cv:4:2,' ',dt:4:2);
end;
close(f1);
close(f2);
end.
const fi='dulieu.txt';
fo='ketqua.txt';
var f1,f2:text;
m,n,i,t:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,m,n);
t:=0;
for i:=m to n do
if i mod 2=0 then t:=t+i;
writeln(f2,t);
close(f1);
close(f2);
end.
Var f1, f2: text;
Tong, m, n, i: integer;
Begin
assign(f1, ‘DULIEU.TXT’);
reset(f1);
assign(f2, ‘KETQUA’);
rewrite(f2);
Tong;= 0;
read(f1, m, n);
for i:= m to n do
if i mod 2 = 0 then Tong:= Tong+i;
write(f2, Tong);
close(f1);
close(f2);
End.
Var f1, f2: text;
Tong, m, n, i: integer;
Begin
assign(f1, ‘DULIEU.TXT’);
reset(f1);
assign(f2, ‘KETQUA’);
rewrite(f2);
Tong;= 0;
read(f1, m, n);
for i:= m to n do
if i mod 2 = 1 then Tong:= Tong+i;
write(f2, Tong);
close(f1);
close(f2);
End.
Var f1, f2: text;
Tong, m, n, i: integer;
Begin
assign(f1, ‘DULIEU.TXT’);
reset(f1);
assign(f2, ‘KETQUA’);
rewrite(f2);
Tong;= 0;
read(f1, m, n);
for i:= m to n do
if i mod 2 = 0 then Tong:= Tong+i;
write(f2, Tong);
close(f1);
close(f2);
End.
Var f1, f2: text;
Tong, m, n, i: integer;
Begin
assign(f1, ‘DULIEU.TXT’);
reset(f1);
assign(f2, ‘KETQUA’);
rewrite(f2);
Tong;= 0;
read(f1, m, n);
for i:= m to n do
if i mod 2 = 0 then Tong:= Tong+i;
write(f2, Tong);
close(f1);
close(f2);
End.