// Divisibility
#include <stdio.h>
#define MAXR 10000001
int r[MAXR];
int main()
{
int n, k, i, num, mod, found;
__int64 sum = 0;
FILE *fin, *fout;
fin = fopen("div.in", "r");
fout = fopen("div.out", "w");
found = 0;
fscanf(fin, "%d %d", &n, &k);
for(i = 0; i < n; i++) {
fscanf(fin, "%d", &num);
sum += num;
mod = (int)(sum % k);
if(r[mod] != 0) {
fprintf(fout, "%d %d\n", r[mod]+2, i+1);
found = 1;
break;
}
r[mod] = i;
}
if(!found)
fprintf(fout, "NO SOLUTION\n");
fclose(fin);
fclose(fout);
return 0;
}