[nikita.mmf]

S=10;
M=3;
N=4;
var out = [], i = 1, k, l, j, res;
for ( ; i <= S - M - N; i++ ) {
	k = 0;
	l = (S - M - N) - i;
	for ( ; l > -1; l--, k++ ) {
		res = [];
		for ( j = k; j--; ) res.push('-');
		for ( j = M; j--; ) res.push('*');
		for ( j = i; j--; ) res.push('-')
		for ( j = N; j--; ) res.push('*');
		for ( j = l; j--; ) res.push('-')
		out.push( res.join('') );
	}
}
alert( out.join("\n") )