AB+CD ∗ E−FG/∗∗
AB+CD ∗ E−F∗∗G/
AB+CD ∗ E−∗F∗G/
AB+CDE∗ −∗F∗G/
ABCDE$*/-
A-BCDE$*/-
ABC$ED*/-
A-BCDE$*/
Stack
Queue
Tree
Array
*AB/CD+
AB*CD/+
A*BC+/D
ABCD+/ *
Full parenthesized infix expression
Prefix expression
Partially parenthesized infix expression
More than one of these