#include<stdio.h> int id(int a) { int i=1,sum=0; for(i=1;i<a;i++) { if(a%i==0) sum=sum+i; } return sum; } int main() { int m,n,i,j; scanf("%d %d",&m,&n); for(i=m;i<n-1;i++) { for(j=i+1;j<n;j++) { if(id(i)==j&&id(j)==i) printf("%d %d\n",i,j); } } } |
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