# load data num = list(map(lambda x:float(x),input().split(" "))) # implement the dfs def dfs(num,idx,res): if res==24: return True for i in range(0,len(num)): if dfs(num[:i]+num[i+1:],i+1,res+num[i]) or dfs(num[:i]+num[i+1:],i+1,res-num[i]) or \ dfs(num[...