"From A to A"  0.00000  0.00000
"From B to A"  0.00000  0.00050
"From C to A"  0.00000  0.00030
"From D to A"  0.00000  0.00030
"From A to B"  0.00000  0.00060
"From B to B"  0.00000  0.00000
"From C to B"  0.00000  0.00080
"From D to B"  0.00000  0.00050
"From A to C"  0.00000  0.00035
"From B to C"  0.00000  0.00090
"From C to C"  0.00000  0.00000
"From D to C"  0.00000  0.00030
"From A to D"  0.00000  0.00040
"From B to D"  0.00000  0.00040
"From C to D"  0.00000  0.00035
"From D to D"  0.00000  0.00000