#include <math.h>
#include <stdio.h>
int a[20] = {0,1,2,3,4,5,6,7,8,9,10,9,8,7,6,5,4,3,2,1};
int b[5] = {10,10,10,10,10};
main()
{
int i,j;
int f[24] = {0};
for(i=0;i<5;i++)
{
for(j=0;j<20;j++)
{
f[i+j] = b[i]*a[j]+f[i+j];
}
}
exit(0);
}