import std.stdio,
       std.conv,
       std.string,
       std.range,
       std.algorithm;

void main()
{
    auto N = readln.chomp.to!int;
    auto K = readln.chomp.to!int;
    auto n = stdin.byLineCopy.array.to!(int[]);

    (n.minCount!"a>b"[0] - n.minCount[0]).writeln;
}