#include<bits/stdc++.h>
using namespace std;
int main(){
freopen("p1782.in","r",stdin);
freopen("p1782.out","w",stdout);
char a[101],b[101];
long n,k[101]={0},t[101]={0},m,i;
cin>>n;
for(i=1;i<=n;i++){
cin>>a[i]>>k[i]>>t[i];
}
for(i=1;i<=n;i++){
m=a[i]+(k[i]%26)*(t[i]%26)%26;
if(m>122)m=m-26;
b[i]=m;
}
for(i=1;i<=n;i++){
cout<<b[i]<<endl;
}
fclose(stdin);
fclose(stdout);
return 0;
}
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