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C.cpp
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C.cpp
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#include<bits/stdc++.h>
using namespace std;
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL)
int main()
{
fastio;
long long n,i,j,ara[5][200],sum=0,x;
cin>>n;
for(i=0;i<2;i++)
{
for(j=0;j<n;j++)
{
cin>>ara[i][j];
}
}
if(n==1)
cout<<ara[0][0]+ara[1][0]<<"\n";
else
{
for(i=0;i<n-1;i++)
{
if(i==0)
{
sum=ara[0][0];
for(j=0;j<n;j++)
sum+=ara[1][j];
x=sum;
}
else
{
sum=sum-ara[1][i-1]+ara[0][i];
x=max(x,sum);
}
}
cout<<x;
}
return 0;
}