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- #include <bits/stdc++.h>
- using namespace std;
- #define ll long long
- #define test int t; cin>>t; for(int cs=1;cs<=t;cs++)
- int main()
- {
- ios_base::sync_with_stdio(0);
- cin.tie(0);cout.tie(0);
- test
- {
- ll a,c,d,e,f,i,j,k,l=0;
- cin>>a;
- vector<ll>x;
- for(i=1;i<=9;i++)
- {
- k=i;
- while(k!=a && k<=9999)
- {
- x.push_back(k);
- k=(k*10)+i;
- }
- if(k==a)
- { x.push_back(k);
- break;
- }
- }
- for(i=0;i<x.size();i++)
- {
- if(x[i]==a)
- {
- l++;
- break;
- }
- else l++;
- }
- j=(l/4)*10;
- k=l%4;
- i=(k*(k+1))/2;
- cout<<j+i<<endl;
- }
- return 0;
- }
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