for(x=0;x<10;++x)
{
	if(str.charAt(x) == i && str.charAt(x+1) == "=")
	{
		position[i] = x;
		++i;
	}
}

for(x=0;x<10;++x)
	variable[x] = str.splice(position[x]+2, position[x+1]-1);