#include <cstdio>
using namespace std;
int main()
{
cout<<"v v"<<endl;
cout<<" v v "<<endl;
cout<<" v "<<endl;
return 0;
}
#include <stdio.h>
main()
{
int a=123;
float b=345,c,d,e,f;
c=a+b;
d=a-b;
e=a*b;
f=a/b;
printf("a+b=%f\n",c);
printf("a-b=%f\n",d);
printf("a*b=%f\n",e);
printf("a/b=%f\n",f);
}