View Compilation Error

0_0_36912301_5202.cpp: In function 'int intmain()':
0_0_36912301_5202.cpp:3:47: error: 'inti' was not declared in this scope
 intmain(){int T,arr[50];arr[1]=1;arr[0]=0;for(inti=2;i<=40;i++)arr[i]=arr[i-1]+arr[i-2];scanf("%d",&T);while(T--){int M;scanf("%d",&M);cout<<arr[M]<<endl;}return 0;}
                                               ^
0_0_36912301_5202.cpp:3:54: error: 'i' was not declared in this scope
 intmain(){int T,arr[50];arr[1]=1;arr[0]=0;for(inti=2;i<=40;i++)arr[i]=arr[i-1]+arr[i-2];scanf("%d",&T);while(T--){int M;scanf("%d",&M);cout<<arr[M]<<endl;}return 0;}
                                                      ^