What is the measure of angle ABC ?

D A 30 40 20 10 170 0 180 160 150 50 130 60 140 20 110 100 120 B E 100 80 90 110 70 60 0 140 40 130 50 180 150 150 20 170 30 10 C

There is not enough information given in the input to determine the measure of angle ABC. The input provided does not indicate the position or relation of angle ABC to any other angles or lines.