#include #define _overload(_1,_2,_3,name,...) name #define _rep(i,n) _range(i,0,n) #define _range(i,a,b) for(int i=int(a);i=int(b);--i) #define rrep(...) _overload(__VA_ARGS__,_rrange,_rrep,)(__VA_ARGS__) using namespace std; const int limit=100000; vector calc(int n){ vector ret(10,0); for(int i=2;i*i<=n;++i) while(n%i==0) ret[i%9]++,n/=i; if(n!=1) ret[n%9]++; return ret; } int power(int a,int n,int mod){ int b=1; while(n){ if(n&1) b=b*a%mod; a=a*a%mod; n>>=1; } return b; } const int t_limit=100000; const int n_limit=100000; int main(void){ int t=0,all=0; scanf("%d",&t); assert(1<=t&&t<=t_limit); rep(loop,t){ char s[limit+1]; scanf("%s",s); int n=strlen(s); assert(1<=n); all+=n; bool allzero=true; rep(i,n) if(s[i]!='0') allzero=false; if(allzero){ puts("0"); continue; } int ans=0,f[10]; fill(f,f+10,0); int num=n-1,den=1; rep(i,n){ int cur=s[i]-'0'; rep(j,10) cur=(cur*power(j,f[j],9))%9; ans=(ans+cur)%9; vector factor_num=calc(num),factor_den=calc(den); rep(j,10) f[j]+=factor_num[j]; rep(j,10) f[j]-=factor_den[j]; num--,den++; } if(ans==0) ans=9; printf("%d\n",ans); } assert(all<=n_limit); return 0; }