added missing files

testCases/pr1/inputs/input13/A.csv

+  ugli,  tangerine
+  lemon,  lime

testCases/pr1/inputs/input13/B.csv

+orange,  grapefruit
+mandarin,   pomelo

testCases/pr1/inputs/input14/A.csv

+ugli,tangerine
+lemon,lime

testCases/pr1/inputs/input14/B.csv

+orange,  pink grapefruit
+mandarin, pomelo

testCases/pr1/inputs/input15/A.csv

+1,2
+3,4
+5,6
+7,8
+9,10
+11,12
+13,14
+15,16
+17,18
+19,20

testCases/pr1/inputs/input15/B.csv

+a,b
+c,d
+e,f
+g,h
+i,j
+k,l
+m,n
+o,p
+q,r
+s,t
+u,v
+w,x
+y,z

testCases/pr1/inputs/input2/A.csv

+1,2

testCases/pr1/inputs/input3/B.csv

+1,2

testCases/pr1/inputs/input4/A.csv

+lemon,lime

testCases/pr1/inputs/input4/B.csv

+orange,grapefruit

testCases/pr1/inputs/input5/A.csv

+lemon,lime
+ugli,tangerine

testCases/pr1/inputs/input5/B.csv

+orange,grapefruit

testCases/pr1/inputs/input6/A.csv

+ugli,tangerine
+lemon,lime

testCases/pr1/inputs/input6/B.csv

+orange,grapefruit