数字3を4個含む数式（３）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!-33
[ 8] 3!-3+3-3
[ 9] .3*(3+3!)+.3
[10] .3*3!/(.3+.3)
[11] (3-.3)/.3-3!
[12] 3*α+3!*α
[13] (3-α*3!)/α
[14] 3*(3!-3)*α
[15] 3/3+α*3!
[16] 3*α+3!/3
[17] 3*(α+α+α)
[18] 3/(α+α+α)
[19] .3+.3/(α*α)
[20] (3*α)/.3-α
[21] (3+3+3)*α
[22] 3/α-3-3
