#include<stdio.h>
int main(){
  int t;
  scanf("%d",&t);
  while(t--){
    int n,sum=0,i,j=2,k;
    scanf("%d",&n);
    k=2*n;
    for(i=0;i<n-1;i++){
      if((k-i)%10!=0)
        sum=sum+((k-i)%11*(i+1));
      else
        sum=sum+(1*(i+1));
      if((2+i)%10!=0)
        sum=sum+((2+i)%11*(i+1));
      else
        sum=sum+(1*(i+1));
    }
    sum=sum+(n*((n+1)%11));
    printf("%d\n",sum);
  }
}