in game Playrix take t minute oven bake k carrot cake cake ready moment t minute start bake Arkady need n cake complete task currently do not however infinitely ingredient oven moreover Arkady build similar oven process fast d minute build oven while new oven build old bake cake new oven build oven bake simultaneously Arkady can not build ovendetermine reasonable build second oven ie decrease minimum time need n cake if time need second oven oven unreasonable