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Cod sursa(job #311097)
#include<stdio.h>
long j,j1,j2,j3,j4,j5,j6,j7,j8,j9,aa,a[100005],x[100005],n,f,p;
int main()
{
freopen("subsir100.in","r",stdin);
freopen("subsir100.out","w",stdout);
scanf("%ld",&n);
for(i=1;i<=n;++i)
{
scanf("%ld",&aa);
f=1;
for(j=1;j<a[0];++j)if(a[j]==aa){++x[j];f=0;break;}
if(f)a[++a[0]]=aa,x[a[0]]=1;
}
for(i=1;i<=a[0];++i)
{if(i==1)
for(j=1;j<=a[0];++j)
p=(p+a[j])%1000003;
if(i==2)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
p=(p+(a[j]*a[j1])%1000003)%1000003;
if(i==3)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
p=(p+(((a[j]*a[j1])%1000003)*a[j2])%1000003)%1000003;
if(i==4)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
p=(p+(((((a[j]*a[j1])%1000003)*a[j2])%1000003)*a[j3])%1000003)%1000003;
if(i==5)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
p=(p+(((((((a[j]*a[j1])%1000003)*a[j2])%1000003)*a[j3])%1000003)*a[j4])%1000003)%1000003;
if(i==6)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
for(j5=j4+1;j5<=a[0];++j5)
p=(p+(((((((((a[j]*a[j1])%1000003)*a[j2])%1000003)*a[j3])%1000003)*a[j4])%1000003)*a[j5])%1000003)%1000003;
/*if(i==7)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
for(j5=j4+1;j5<=a[0];++j5)
for(j6=j5+1;j6<=a[0];++j6)
p+=(a[j]*a[j1]*a[j2]*a[j3]*a[j4]*a[j5]*a[j6]);
if(i==8)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
for(j5=j4+1;j5<=a[0];++j5)
for(j6=j5+1;j6<=a[0];++j6)
for(j7=j6+1;j7<=a[0];++j7)
p+=(a[j]*a[j1]*a[j2]*a[j3]*a[j4]*a[j5]*a[j6]*a[j7]);
if(i==9)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
for(j5=j4+1;j5<=a[0];++j5)
for(j6=j5+1;j6<=a[0];++j6)
for(j7=j6+1;j7<=a[0];++j7)
for(j8=j7+1;j8<=a[0];++j8)
p+=(a[j]*a[j1]*a[j2]*a[j3]*a[j4]*a[j5]*a[j6]*a[j7]*a[j8]);
if(i==10)
for(j=1;j<=a[0];++j)
for(j1=j+1;j1<=a[0];++j1)
for(j2=j1+1;j2<=a[0];++j2)
for(j3=j2+1;j3<=a[0];++j3)
for(j4=j3+1;j4<=a[0];++j4)
for(j5=j4+1;j5<=a[0];++j5)
for(j6=j5+1;j6<=a[0];++j6)
for(j7=j6+1;j7<=a[0];++j7)
for(j8=j7+1;j8<=a[0];++j8)
for(j9=j8+1;j9<=a[0];++j9)
p+=(a[j]*a[j1]*a[j2]*a[j3]*a[j4]*a[j5]*a[j6]*a[j7]*a[j8]*a[j9]);*/
}
printf("%ld\n",p)
return 0;
}