View Compilation Error

0_0_16257531_30481.cpp:6:1: error: 'innt' does not name a type
 innt gcd(int a,int b)
 ^
0_0_16257531_30481.cpp: In function 'int main()':
0_0_16257531_30481.cpp:25:16: error: 'gcd' was not declared in this scope
    if(gcd(i,n+1) == 1) ans++;
                ^