// Probability for the walker to make it onto any anchorage
P = ? [F[200*60,200*60] (w1=17)|(w1=20)|(w1=25)|(w1=28) ]
// Probability to make it to the intended anchorage for input LL
P = ? [F[200*60,200*60] (w1=17) ]
// Probability to make it to the intended anchorage for input RL
P = ? [F[200*60,200*60] (w1=20) ]
// Probability to make it to the intended anchorage for input LR
P = ? [F[200*60,200*60] (w1=25) ]
// Probability to make it to the intended anchorage for input RR
P = ? [F[200*60,200*60] (w1=28) ]