#include<stdio.h>
int main()
{
int a[10],b[10],i,n;
for(i=0;i<2;i++)
{
scanf("%d,%d",&a
[i
],&b
[i
]); }
for(i=0;i<2;i++)
{
}
return 0;
}
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