// Author: Lech Duraj

#include <cstdio>
#include <algorithm>

int main()
{
    int TT;
    scanf("%d",&TT);
    while(TT--)
    {
        int N;
        scanf("%d",&N);
        int a = -1;
        int b = -1;
        for(int u=2; u*u<=2*N; u++)
            if (2*N%u == 0)
            {
                int v = 2*N / u;
                if ((u+v)%2==1)
                {
                    a = (u+v-1)/2;
                    b = (v-u-1)/2;
                    break;
                }
            }
        if (a==-1)
            printf("IMPOSSIBLE\n");
        else
        {
            printf("%d = ",N);
            for(int i=b+1; i<a; i++)
                printf("%d + ",i);
            printf("%d\n",a);
        }
    }
}