1 #include<bits/stdc++.h>
2 const int RN=1e5;
3 char ib[RN+5],*ip=ib+RN,ob[RN+1007],*op=ob;
4 inline int gc(){
5 ip==ib+RN?fread(ip=ib,1,RN,stdin)[ib]=0:0;
6 return*ip++;
7 }
8 struct IO{
9 void flush(){
10 fwrite(ob,1,op-ob,stdout),op=ob;
11 }
12 template<class T>//T=int,long long
13 IO&operator>>(T&x0){
14 T x=0;
15 int f=1;
16 if(ip<ib+RN-100){
17 while(*ip<48)*ip++=='-'?f=-1:0;
18 while(*ip>47)x=x*10+*ip++-48;
19 }else{
20 int c=gc();
21 while(c<48)c=='-'?f=-1:0;
22 while(c>47)x=x*10+c-48,c=gc();
23 }
24 x0=x;
25 return *this;
26 }
27 IO&operator>>(char*s){
28 int c=gc();
29 while(c<33)c=gc();
30 while(c>32)*s++=c,c=gc();
31 *s=0;
32 return *this;
33 }
34 template<class T>//T=int,long long,char
35 IO&operator<<(T x){
36 if(op>ob+RN)flush();
37 int ss[25],sp=0;
38 if(x<0)*op++='-',x=-x;
39 do ss[++sp]=48+x%10;while(x/=10);
40 while(sp)*op++=ss[sp--];
41 return *this;
42 }
43 IO&operator<<(char x){
44 if(op>ob+RN)flush();
45 *op++=x;
46 return *this;
47 }
48 IO&operator<<(const char*str){
49 int n=strlen(str);
50 if(op+n>ob+RN)flush();
51 if(n<RN)memcpy(op,str,n),op+=n;
52 else fwrite(str,1,n,stdout);
53 return *this;
54 }
55 IO&operator<<(char*str){
56 return *this<<(const char*)str;
57 }
58 IO&operator<<(std::string str){
59 return *this<<str.data();
60 }
61 }io;
62 int main(){
63 freopen("in.txt","r",stdin);
64 int a,b;
65 io>>a>>b;
66 io<<a<<'+'<<b<<'='<<a+b<<'\n';
67 io<<"test_string_output\n";
68 char s[111];
69 io>>s;
70 io<<s<<'\n';
71 io.flush();
72 freopen("o.txt","w",stdout);
73 for(int i=0;i<10000000;++i)io<<i<<' ';
74 io.flush();
75 return 0;
76 }
