$ python3.7 minskys_turing_machine.py 
State 19 reading S writing B shifting left  resulting in:  00111MYBAAXAAAAAAAXAABAAAAB1000Y01SX0000001X0010110X0100011X0110100Y00 Step 380
                                                                                    A
State 19 reading S writing B shifting left  resulting in:  0011M0Y00BX0000000X001000011000Y00SX0000001X0010110X0100011X0110100Y00 Step 721
                                                                   A
State 19 reading S writing B shifting left  resulting in:  001M00Y00BX0000000X001000011000Y00SX0000001X0010110X0100011X0110100Y00 Step 1055
                                                                   A
State 19 reading S writing B shifting left  resulting in:  00M000Y00BX0000000X001000011000Y00SX0000001X0010110X0100011X0110100Y00 Step 1393
                                                                   A
State 18 reading S writing A shifting left  resulting in:  0M0000Y00AX0000000X001000011000Y00SX0000001X0010110X0100011X0110100Y00 Step 1735
                                                                   A
State 18 reading S writing A shifting left  resulting in:  M00000Y00AX0000000X001000011000Y00SX0000001X0010110X0100011X0110100Y00 Step 1909
                                                                   A
Ran out of tape!