process.stdin.resume();
process.stdin.setEncoding('utf8');

var g_input = '';
process.stdin.on('data', function(chunk) {
    g_input += chunk;
});
process.stdin.on('end', function() {
    main(g_input.split(/\r?\n/));
});
function main(inputs){
// todo
  var i = 0;
var tenki = ["Sunny","Cloudy","Rainy","Sunny"];
for(i= 0; i < 3;i++){
  if(inputs == tenki[i])
  	{console.log(tenki[i+1])
  }
}
}