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class Vis1 {
private int x=10,y=10;
int p1=1;
protected int p2=1;
public int p3=1;
}
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double sum1(int n){
int i;
double r=0;
for(i=1;i<=n;i++){
r+=i;
};
return r;
}
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c=obj1.sum1(1000);
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void setX(double x){
this.x=x
}
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