42 lines
835 B
C++
42 lines
835 B
C++
#include<iostream>
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#include<cstdio>
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#include<cstring>
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using namespace std;
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const int M=200907;
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int main()
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{
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__int64 a1,a2,a3,q;
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int n,T;
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__int64 ans;
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scanf("%d",&T);
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while(T--)
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{
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scanf("%I64d%I64d%I64d%d",&a1,&a2,&a3,&n);
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if(a2-a1==a3-a2)
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{
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q=a2-a1;
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ans=(a1%M+(((n-1)%M)*(q%M))%M)%M;
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}
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else
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{
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q=(a2/a1)%M;
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long long temp=1;
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n--;
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a1=a1%M;
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while(n)
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{
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if(n&1)
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{
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temp=temp*q;
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temp%=M;
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}
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q=(q*q)%M;
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n/=2;
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}
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ans=(a1*temp)%M;
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}
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printf("%I64d\n",ans);
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}
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return 0;
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}
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