Tests
One hint
1+1
# one hint
Two hints
1+1
# first hint
# second hint
Two hints plus solution
1+1
# 3 - first hint
# 3 - second hint
2 + 2
1+1
# one hint
1+1
# first hint
# second hint
1+1
# 3 - first hint
# 3 - second hint
2 + 2