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#include <stdio.h>
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int cal(int n){
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int s=0;
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for(int i=1;i<=n;i++){
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if(n%i==0) s++;}
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return s;
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}
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int main(){
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int n,a,b;
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scanf("%d",&n);
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while(n--){
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scanf("%d%d",&a,&b);
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int max=a;
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int m=cal(a);
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for(int i=a;i<=b;i++)
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if(m<cal(i)){
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m=cal(i);
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max=i;}
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printf("%d\n",max);
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}
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return 0;
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}
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