19 lines
428 B
C
19 lines
428 B
C
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#include <stdio.h>
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#include <math.h>
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#define MIN(x,y) ((x)>(y)?(y):(x))
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int main(void){
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unsigned long long n,m;
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int count = 0;
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register unsigned long long i,a1;
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while(scanf("%llu %llu",&n,&m) == 2 && n+m){
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register unsigned long long num = sqrt(2*m);
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for(i = num; i >= 1; i--){
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a1 = (m-((i-1)*i)/2)/i;
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if(a1 > 0 && m == i*a1+(i*(i-1))/2) printf("[%llu,%llu]\n",a1,a1+i-1);
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}
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printf("\n");
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}
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return 0;
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}
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