module orGate (
    input A_i,
    input B_i,
    output F_o
);

wire nand1_out, nand2_out;

nand nand1(nand1_out, A_i, A_i);
nand nand2(nand2_out, B_i, B_i);
nand nand3(F_o, nand1_out, nand2_out);

endmodule