数字3を4個含む数式（８）を作成する問題の解答例を示します。
問題の解
[ 1] 3+3!-3/3
[ 2] (3*3!+3!)/3
[ 3] 3*3-3/3
[ 4] 3*3!-3/.3
[ 5] (3+3)/3+3!
[ 6] 3+3+3!/3
[ 7] 3/.3-3!/3
[ 8] 33/3-3
[ 9] 3/(.3+.3)+3
[10] (3-.3-.3)/.3
[11] (3*3!+3!)*α
[12] 3/α-3/3
[13] 3+3+α*3!
[14] 3+3!-α*3
[15] (3/3+α)*3!
[16] 3/.3-α*3!
[17] 3!/α-3/.3
[18] 33*α-3
[19] (3*α+α)*3!
[20] 3*(α+α)+3!
