真不难

#include<iostream>
using namespace std;
int main()
{
int n,m,a[110][110]={0};
cin>>n>>m;
for(int i = 1;i<=n;i++)
{
for(int j = 1;j<=m;j++)
{
cin>>a[i][j];
cout<<a[i][j]<<" ";
}
cout<<"\n";
}
return 0;
}