unittest
{
	assert( [ "1000 15 80" ].solve == "Yes" );
	assert( [ "2000 20 100" ].solve == "Yes" );
	assert( [ "10000 1 1" ].solve == "No" );
}



import std.conv;
import std.format;
import std.range;
import std.stdio;

void main()
{
	stdin.byLineCopy.solve.writeln;
}

auto solve( Range )( Range input )
if( isInputRange!Range && is( ElementType!Range == string ) )
{
	auto d = 0L;
	auto t = 0L;
	auto s = 0L;
	input.front.formattedRead!"%s %s %s"( d, t, s );
	
	return ( ( d + s - 1 ) / s <= t ) ? "Yes" : "No";
}
