tab = [ [0,3,2], [9,4,5], [4,1,3]]

def tri(tableau):
    x = 0
    valueTab = {}
    for subTab in tableau :
        sum = 0
        subTab.sort() 
        for value in subTab:
            sum = sum + value
        valueTab[x] = sum
        x = x + 1
    newValueTab = dict(sorted(valueTab.items(), key=lambda item: item[1]))
    newTab = []
    for key in newValueTab:
        newTab.append(tableau[key])
    print(newTab)



tri(tab)