"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"a"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"b"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"
"c"