import java.io.*;
class A
{public static void main
(String []args
) {
int i,j,flag=0;
for(i=2;i<=10;i++)
{flag=0; for(j=2;j<i;j++)
{if(i%j==0)
{flag=1;
break;}
}
if(flag==0)
}
}
}
aW1wb3J0IGphdmEuaW8uKjsKIApjbGFzcyBBCntwdWJsaWMgc3RhdGljIHZvaWQgbWFpbihTdHJpbmcgW11hcmdzKQp7CiBpbnQgaSxqLGZsYWc9MDsKIGZvcihpPTI7aTw9MTA7aSsrKQogIHtmbGFnPTA7IGZvcihqPTI7ajxpO2orKykKICAgICB7aWYoaSVqPT0wKQogICAgICAge2ZsYWc9MTsKICAgICAgICBicmVhazt9CiAgICAgIH0KICAgIGlmKGZsYWc9PTApCiAgICBTeXN0ZW0ub3V0LnByaW50bG4oaSk7CiAgIH0KfQp9