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#include<bits/stdc++.h>
using namespace std;
long long n;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n;
    while(n--)
    {
        string s;
        cin>>s;
        if(s[0]=='R' && s.find('C')!=string::npos && isdigit(s[1]))
        {
            int vt=s.find('C');
            long long hang=stoll(s.substr(1,vt-1));
            long long cot=stoll(s.substr(vt+1));
            string kq="";
            while(cot>0)
            {
                cot--;
                kq=char('A'+cot%26)+kq;
                cot/=26;
            }
            cout<<kq<<hang<<"\n";
        }
        else
        {
            int i=0;
            while(isalpha(s[i])) i++;
            string chu=s.substr(0,i);
            long long hang=stoll(s.substr(i));
            long long cot=0;
            for(int j=0;j<chu.size();j++)
                cot=cot*26+(chu[j]-'A'+1);
            cout<<"R"<<hang<<"C"<<cot<<"\n";
        }
    }
}