from collections import defaultdict

d = defaultdict(lambda:0)

CAN_DISCARD = True

nlist = range(1, 11)
op = ['-', '+']
op2 = op + ['+0*'] if CAN_DISCARD else op

l = []
for ns in ((i, j, k) for i in nlist for j in nlist for k in nlist):
    td = set()
    for ops in ((a, b, c) for a in op for b in op2 for c in op2):
        s = ''.join(x + str(y) for x, y in zip(ops, ns))
        print(s)
        #s = ''.join(sorted(t))
        key = eval(s)
        if key > 0:
            td.add(key)
    l.append(str(ns) + ' can form ' + str(td))
    for k in td:
        print(k)
        d[k] += 1

total = sum(d.values())
for k, v in sorted(d.items(), key=lambda t: -t[1]):
    print('{0}: - %{1}'.format(k, 100*v/(len(nlist)**3)))


print(len(l))
with open('asd.txt', 'w') as f:
    for i, x in enumerate(l):
        f.write('{0}.{1}\n'.format(i, x))