Me and Panama are trapped in a two-player prison, hundreds of blocks in the sky. We each mined out of ourselves, but the challenge was getting down. In F3, I realized we were near height limit and also in a snowy beach. However, there was a glass ceiling above us preventing snow, and mining snow with your fist drops nothing. By observing the edges, I found an unobtainable barrel with one stick, and Panama found nothing. When I looked above, there was a block of ice in one room and a piston in another. Then I knew exactly what to do. I crafted a redstone torch, then in Panama's cell, I mined the reinforced deep slate with my fist for several minutes, then grabbed the piston above. I placed the piston and activated it with the torch to push myself up. Then mined another reinforced deep slate. Panama grabbed the piston and torch, then threw them to me. I jumped to the other room, then using the piston, I pushed the ice block upward, then towards the opening. Now when I broke the ice, it turned to water and we escaped down the waterfall.