/*#include <stdio.h>
int main()
{
int n,i,k,kn;
scanf("%d %d",&n,&k);
if(k==0)
{
printf("1");
}
else{
kn=n;
for(i=2;i<=k;i++)
{
n=n*kn;
}
printf("%d",n);
}
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int i,a,b,r=0;
scanf("%d %d",&a,&b);
for(i=a;i<=b;i++)
{
if(i%2==0)
{
r=r-i;
}
else
{
r=r+i;
}
}
printf("%d",r);
}
*/
/*#include <stdio.h>
int main()
{
int i,a,b,r=0;
scanf("%d %d",&a,&b);
for(i=a;i<=b;i++)
{
if(i%2==0)
{
r=r-i;
printf("-%d",i);
}
else
{
r=r+i;
printf("+%d",i);
}
}
printf("=%d",r);
}
*/
/*#include <stdio.h>
int main()
{
int r=0,i,a,b;
scanf("%d %d",&a,&b);
for(i=a;i<=b;i++)
{
if(i%2==0)
{
r=r-i;
printf("-%d",i);
}
else
{
r=r+i;
if(i==a&&i%2==1)
{
printf("%d",i);
}
else
{
printf("+%d",i);
}
}
}
printf("=%d",r);
return 0;
}
*/