#include iostreamusing namespace std;int main(){ int x,y,z,n,m; cinxyznm; int ans=0; for(int a=0;a=m;a++) for(int b=0;b=m;b++) for(int c=0;c=m;c++) if(a+b+c!=m||c%z!=0) continue; else if(a*x+b*y+c/z==n) ans++; coutans; return 0;}

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#includebits/stdc++.husing namespace std;int main(){bool a[1050]={1,1};for(int i=2;i=1000;i++)if(a[i]==0)for(int j=i*i;j=1000;j+=i)if(a[j]==0) a[j]=1;int x,y;cinxy;int ans=0;for(int i=x;i=y;i++)if(a[i]==0) ans++;coutans;return 0;}

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#includebits/stdc++.husing namespace std;int main(){char c[50]="0ABCDEFGHIJKLMNOPQRSTUVWXYZ";int n,x=1;cinn;for(int i=0;in;i++){for(int j=0;j=i;j++){coutc[x++];if(x==27) x=1;}coutendl;}return 0;}

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#include iostreamusing namespace std;int main(){ int s; cins; int c=0; for(int i=1;i*i=s;i++){ if(s%i==0) c++; } coutc; return 0;}

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#include iostreamusing namespace std;int main(){ int n,y; cinny; switch(y){ case 1:case 3:case 5:case 7:case 8:case 10:case 12: cout31; break; case 4:case 6:case 9:case 11: cout30; break; default: if(n%4==0n%100!=0||n%400==0) cout29; else c

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#include iostreamusing namespace std;int main(){ int n; cinn; int s=0,ans=0; for(int i=1;i=n;i++){ s+=i; ans+=s; } coutans; return 0;}

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#include iostreamusing namespace std;int main(){ int a,b,c,d; cinabcd; int t1=a*60+b; int t2=c*60+d; coutt2-t1; return 0;}

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#include iostreamusing namespace std;int main(){ int a,b; cinab; couta+b; return 0;}

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#include iostreamusing namespace std;int main(){ cout"400.00";}

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#include iostreamusing namespace std;int main(){ cout"Hello World!"; return 0;}

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