(async () => {
    let input = '';
    for await (const chunk of process.stdin) input += chunk;
    const [d, t, s] = input.split(/\s/).map(v => +v);

    let moved = t * s * 60;
    if(moved >= d){
        console.log('Yes');
    }else{
        console.log('No');
    }
})();