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published at 1/18/20, 9:05:39 am

using namespace std; int main () { long long a; cin>>a; cout<<a-1; return 0; }

published at 1/14/21, 7:32:46 am

using namespace std; int main () { long long a; cin>>a; cout<<a-1; return 0; }

published at 1/14/21, 7:34:47 am

include<iostream>;

using namespace std; int main () { long long a; cin>>a; cout<<a-1; return 0; }