import java.util.Scanner;publicclassT1050{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int x = in.nextInt();
in.close();long a=1,sum=0;for(int i=1;i<=x;i++){
a*=i;
sum+=a;}
System.out.println(sum);}}
T1051
import java.util.Scanner;publicclassT1051{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);double x = in.nextDouble();int y = in.nextInt();
in.close();double sum = x;for(int i=0;i<y-1;i++){
sum +=Math.pow(x,1.0/2);
x=Math.pow(x,1.0/2);}
System.out.printf("%.2f",sum);}}
T1052
import java.util.Scanner;publicclassT1052{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int n= in.nextInt();int a= in.nextInt();
in.close();int sum=0;int t = a;for(int i=1;i<=n;i++){
sum+=a;
a=a*10+t;}
System.out.println(sum);}}```
## T1053
```java
import java.util.Scanner;publicclassT1053{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);double x = in.nextDouble();
in.close();double sum =0.0;double a=1.0,b=1.0;double x0=x;for(int i =1;i<11;i++){
sum += x*a/b;
a =-a;
x = x*x0*x0;
b = b*(i*2)*(i*2+1);}
System.out.printf("%.3f", sum);}}
T1054
import java.util.Scanner;publicclassT1054{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int x = in.nextInt();
in.close();int sum =1;for(int i=1;i<x;i++){
sum =(sum+1)*2;}
System.out.println(sum);}}
T1055
import java.util.Scanner;publicclassT1055{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int n =in.nextInt();
in.close();int a[]=newint[45];
a[1]=1;
a[2]=1;if(n<3)
System.out.println(a[n]);else{for(int i =3;i<=n;i++){
a[i]= a[i-1]+a[i-2];}
System.out.println(a[n]);}}}
T1056
import java.util.Scanner;publicclassT1056{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int x = in.nextInt();int y = in.nextInt();
in.close();int max =0;int f =1;for(int i=x;i<=y;i++){if(i%7==0&&i%4!=0){
max =i;
f=-1;}}if(f==1)
System.out.println("no");else
System.out.println(max);}}
T1057
import java.util.Scanner;publicclassT1057{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);int x = in.nextInt();
in.close();int f =1;if(x==1)
f=-1;for(int i=2;i<=Math.sqrt(x);i++){if(x%i==0)
f=-1;}if(f==1)
System.out.println("Yes");else
System.out.println("No");}}
T1058
import java.util.Scanner;publicclassT1058{publicstaticvoidmain(String[] args){// TODO Auto-generated method stub
Scanner in =newScanner(System.in);long x = in.nextInt();
in.close();long a=1,sum=0;for(int i=1;i<=100;i++){
a*=i;
sum+=a;if(sum>=x){
System.out.println("m<="+(i-1));break;}}}}
T1059
import java.util.Scanner;publicclassT1059{publicstaticvoidmain(String[] args){// TODO Auto-generated method stubint a;int b=0;
Scanner in =newScanner(System.in);do{
a =in.nextInt();
b =Math.max(a, b);}while(a>=0);
System.out.println(b);
in.close();}}