This circuit demonstrates the use of a Toffoli gate with two initialized qubits as control and measuring the result on the target qubit.
```python
from qiskit import *
# Create a circuit with 3 qubits and 1 classical bit
qc = QuantumCircuit(3, 1)
# Initialize qubits 0 and 1 to |1>
qc.x(0)
qc.x(1)
# Apply Toffoli gate (CCX) with control qubits 0 and 1 and target qubit 2
qc.ccx(0, 1, 2)
# Measure qubit 2
qc.measure(2, 0)
```
{
"0": 83,
"1": 941
}