—-

def popopop(l, n):
try:
l.pop(l.index(n))
return True
except:
return False

def calcule(a, b, c, d):
aa = abs(a – b)
bb = abs(b – c)
cc = abs(c – d)
aaa = abs(aa – bb)
bbb = abs(bb – cc)
aaaa = abs(aaa – bbb)
return aa, bb, cc, aaa, bbb, aaaa

SOLUTIONS = []

for i in range(10):
a = i + 1
la = [n+1 for n in range(10)]
la.pop(la.index(a))
for b in la:
lb = [n for n in la]
popopop(lb, b)
for c in lb:
lc = [n for n in lb]
popopop(lc, c)
for d in lc:
ld = [n for n in lc]
popopop(ld, d)
# pour éviter les solutions symétriques :
if (d, c, b, a) in SOLUTIONS:
continue
aa, bb, cc, aaa, bbb, aaaa = calcule(a, b, c, d)
if not(popopop(ld, aa)):
continue
if not(popopop(ld, bb)):
continue
if not(popopop(ld, cc)):
continue
if not(popopop(ld, aaa)):
continue
if not(popopop(ld, bbb)):
continue
if not(popopop(ld, aaaa)):
continue
#print(a, b, c, d)
SOLUTIONS.append((a, b, c, d))

for (a, b, c, d) in SOLUTIONS:
aa, bb, cc, aaa, bbb, aaaa = calcule(a, b, c, d)
print(‘ ‘*3, aaaa)
print(‘ ‘*2, aaa, bbb)
print(‘ ‘*1, aa, bb, cc)
print(a, b, c, d)