def all_combs(L, way):
    if len(L) == 1:
        if L[0] == 10:
            print way
    for i in xrange(len(L)):
        for j in xrange(i + 1, len(L)):
            for op in ["+", "/", "-", "*"]:
                try:
                    new_L = [L[t] for t in xrange(len(L)) if t not in [i, j]] + [eval(str(L[i])+op+str(L[j]))]
                    all_combs(new_L, way + [(L[i],op, L[j])] )
                    new_L = [L[t] for t in xrange(len(L)) if t not in [i, j]] + [eval(str(L[j])+op+str(L[i]))]
                    all_combs(new_L, way + [(L[j], op, L[i])])
                 except:
                    pass